CVE-2021-28482
published 2021-04-13CVE-2021-28482: Microsoft Exchange Server Remote Code Execution Vulnerability
PriorityP192high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
ITWEXPLOITVulnCheck KEVRansomware
Exploited in the wild
EPSS
83.21%
99.6th percentile
Microsoft Exchange Server Remote Code Execution Vulnerability
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | exchange_server | — | — |
| microsoft | exchange_server | — | — |
| microsoft | exchange_server | — | — |
| microsoft | microsoft_exchange_server_2013_cumulative_update_23 | >= 15.00.0 < 15.00.1497.015 | 15.00.1497.015 |
| microsoft | microsoft_exchange_server_2016_cumulative_update_19 | >= 15.01.0 < 15.01.2176.012 | 15.01.2176.012 |
| microsoft | microsoft_exchange_server_2016_cumulative_update_20 | >= 15.01.0 < 15.01.2242.008 | 15.01.2242.008 |
| microsoft | microsoft_exchange_server_2019_cumulative_update_8 | >= 15.02.0 < 15.02.0792.013 | 15.02.0792.013 |
| microsoft | microsoft_exchange_server_2019_cumulative_update_9 | >= 15.02.0 < 15.02.0858.010 | 15.02.0858.010 |
| msrc | microsoft_exchange_server_2013_cumulative_update_23 | — | — |
| msrc | microsoft_exchange_server_2016_cumulative_update_19 | — | — |
| msrc | microsoft_exchange_server_2016_cumulative_update_20 | — | — |
| msrc | microsoft_exchange_server_2019_cumulative_update_8 | — | — |
| msrc | microsoft_exchange_server_2019_cumulative_update_9 | — | — |
Detection & IOCsextracted from sources · hover to see the quote
path/ews/Exchange.asmx
path/ews/wssecurity
cookieX-BackEndCookie={{email}}={{base64(hex_decode(rawXor))}}
snort
alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT Microsoft Exchange RCE Setup Inbound (CVE-2021-28482)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/ews/Exchange.asmx"; http.request_body; content:"ProposeOptionsMeeting"; content:""|3b|>|3b|cmd"; distance:0; fast_pattern; content:"Value>|3b|"; distance:0; reference:cve,2021-28482; classtype:attempted-admin; sid:2032897; rev:1; metadata:affected_product Microsoft_Exchange, attack_target Server, created_at 2021_05_04, cve CVE_2021_28482, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_23;)
snort↗
57403, 57404, 57411, 57414
- →Exploit traffic targets POST requests to /ews/Exchange.asmx containing 'ProposeOptionsMeeting' in the body along with a semicolon-delimited cmd injection pattern (|3b|>|3b|cmd) in a Value element.
- →Exploit probe begins with a GET /owa/ request; the server's X-FEServer response header is extracted and used to craft the subsequent malicious POST, so anomalous X-FEServer header usage in follow-on EWS requests is a signal.
- →The exploit sets a crafted X-BackEndCookie and X-AnchorMailbox header on the POST to /ews/wssecurity; presence of these headers on unauthenticated EWS requests is suspicious.
- →A successful exploit response includes both 'X-Calculatedbetarget' and 'X-Owa-Error' headers with HTTP 302, and body containing '/owa/auth/errorFE.aspx'.
- ·The Nuclei template in DOC 4 is labelled CVE-2021-28481 (ProxyNotFound/SSRF) but is referenced alongside CVE-2021-28482 deserialization research; the /ews/wssecurity path and cookie-crafting logic apply to the SSRF pre-auth chain, not exclusively to CVE-2021-28482 RCE.
- ·Microsoft's advisory states exploit status as 'Publicly Disclosed: No; Exploited: No' at time of publication, but rates exploitation likelihood as 'More Likely' for both latest and older software releases. ↗
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.09.0CRITICALAV:N/AC:L/Au:S/C:C/I:C/A:C
vulncheck8.8HIGH
vendor_msrc8.8HIGH
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Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-hj49-fxwm-2v87: Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28480, CVE-2021-28482, CVE-2021-28483
ghsa_unreviewed·2022-05-24·CVSS 9.8
CVE-2021-28481 [CRITICAL] GHSA-hj49-fxwm-2v87: Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28480, CVE-2021-28482, CVE-2021-28483
Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28480, CVE-2021-28482, CVE-2021-28483.
GHSA
GHSA-r36c-4fw5-xj49: Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28480, CVE-2021-28481, CVE-2021-28482
ghsa_unreviewed·2022-05-24·CVSS 9.8
CVE-2021-28483 [CRITICAL] GHSA-r36c-4fw5-xj49: Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28480, CVE-2021-28481, CVE-2021-28482
Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28480, CVE-2021-28481, CVE-2021-28482.
GHSA
GHSA-5w74-wv2v-34cm: Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28480, CVE-2021-28481, CVE-2021-28483
ghsa_unreviewed·2022-05-24·CVSS 9.8
CVE-2021-28482 [CRITICAL] GHSA-5w74-wv2v-34cm: Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28480, CVE-2021-28481, CVE-2021-28483
Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28480, CVE-2021-28481, CVE-2021-28483.
GHSA
GHSA-g7vr-3jq4-gwf3: Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28481, CVE-2021-28482, CVE-2021-28483
ghsa_unreviewed·2022-05-24·CVSS 9.8
CVE-2021-28480 [CRITICAL] GHSA-g7vr-3jq4-gwf3: Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28481, CVE-2021-28482, CVE-2021-28483
Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28481, CVE-2021-28482, CVE-2021-28483.
VulnCheck
Microsoft Exchange Server Remote Code Execution Vulnerability
vulncheck·2021·CVSS 8.8
CVE-2021-28482 [HIGH] Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
Affected: Microsoft Exchange Server
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Known Ransomware Campaign Use: Known
Exploitation References: https://go.catonetworks.com/rs/245-RJK-441/images/security%20Quarterly%20Report%20q2.pdf; https://www.trustwave.com/hubfs/Web/Library/Documents_pdf/A_Deep_Dive_into_the_Leaked_Black_Basta_Chat_Logs.pdf
Exploit PoC: https://vulncheck.com/xdb/7af72893828b
Microsoft
Microsoft Exchange Server Remote Code Execution Vulnerability
vendor_msrc·2021-04-13·CVSS 8.8
CVE-2021-28482 [HIGH] Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
FAQ: Where can I find more information about protecting myself from this vulnerability?
Please see the MSRC Blog Post April 2021 Update Tuesday packages now available for more information.
Microsoft Exchange Server: Microsoft Exchange Server
Microsoft: Microsoft
Impact: Remote Code Execution
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation More Likely;Older Software Release:Exploitation More Likely;DOS:N/A
Reference: http://www.microsoft.com/download/details.aspx?familyid=5aa2aaf7-860d-4977-acd4-82096c83c5f0
Reference: https://support.microsoft.com/help/5001779
Reference: http://www.microsoft.com/download/details.aspx?familyid=b13f23a9-5603-4b13-8e16-6d35b5b33524
Reference: http://
Suricata
ET EXPLOIT Microsoft Exchange RCE Setup Inbound (CVE-2021-28482)
suricata·2021-05-04·CVSS 8.8
CVE-2021-28482 [HIGH] ET EXPLOIT Microsoft Exchange RCE Setup Inbound (CVE-2021-28482)
ET EXPLOIT Microsoft Exchange RCE Setup Inbound (CVE-2021-28482)
Rule: alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT Microsoft Exchange RCE Setup Inbound (CVE-2021-28482)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/ews/Exchange.asmx"; http.request_body; content:"ProposeOptionsMeeting"; content:""|3b|>|3b|cmd"; distance:0; fast_pattern; content:"Value>|3b|"; distance:0; reference:cve,2021-28482; classtype:attempted-admin; sid:2032897; rev:1; metadata:affected_product Microsoft_Exchange, attack_target Server, created_at 2021_05_04, cve CVE_2021_28482, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_23;)
Nuclei
Microsoft Exchange - Pre-Auth SSRF / ACL Bypass (ProxyNotFound)
nuclei·CVSS 9.8
CVE-2021-28481 [CRITICAL] Microsoft Exchange - Pre-Auth SSRF / ACL Bypass (ProxyNotFound)
Microsoft Exchange - Pre-Auth SSRF / ACL Bypass (ProxyNotFound)
Microsoft Exchange Server contains a remote code execution caused by improper input validation in the server component, letting remote attackers execute arbitrary code, exploit requires network access to the server.
Template:
id: CVE-2021-28481
info:
name: Microsoft Exchange - Pre-Auth SSRF / ACL Bypass (ProxyNotFound)
author: daffainfo
severity: critical
description: |
Microsoft Exchange Server contains a remote code execution caused by improper input validation in the server component, letting remote attackers execute arbitrary code, exploit requires network access to the server.
impact: |
Attackers can execute arbitrary code remotely, potentially leading to full system compromise or data breach
remediation: |
Apply the
Nuclei
Microsoft Exchange - Pre-Auth SSRF / ACL Bypass (ProxyNotFound)
nuclei·CVSS 9.8
CVE-2021-28480 [CRITICAL] Microsoft Exchange - Pre-Auth SSRF / ACL Bypass (ProxyNotFound)
Microsoft Exchange - Pre-Auth SSRF / ACL Bypass (ProxyNotFound)
Microsoft Exchange Server contains a remote code execution caused by improper input validation in the server component, letting remote attackers execute arbitrary code, exploit requires network access to the server.
Template:
id: CVE-2021-28480
info:
name: Microsoft Exchange - Pre-Auth SSRF / ACL Bypass (ProxyNotFound)
author: daffainfo
severity: critical
description: |
Microsoft Exchange Server contains a remote code execution caused by improper input validation in the server component, letting remote attackers execute arbitrary code, exploit requires network access to the server.
impact: |
Attackers can execute arbitrary code remotely, potentially leading to full system compromise or data breach
remediation: |
Apply the
Greynoiseio
GreyNoise Detects Active Exploitation of CVEs Mentioned in Black Basta’s Leaked Chat Logs
blogs_greynoiseio·2025-02-26·CVSS 9.8
[CRITICAL] GreyNoise Detects Active Exploitation of CVEs Mentioned in Black Basta’s Leaked Chat Logs
CVE Disclosure Early Warning Get an early warning when traffic spikes indicate a high likelihood of new disclosures
Compromised Asset Detection Find out immediately if an asset communicates with a malicious IP address
Vulnerability Prioritization Get real-time insight into active exploitation trends to better understand risk and severity
SOC Efficiency Filter out noisy, low priority and false-positive alerts from mass internet scanners
Incident Investigation Add context to incidents to speed the determinations of scope and timelines
Threat Hunting Quickly identify anomalous behavior and enrich your threat hunting campaigns
Why GreyNoise
CVE Disclosure Early Warning Get an early warning when traffic spikes indicate a high likelihood of new disclosures
Compromised Asset Detection Fin
Qualys
Defense Lessons From the Black Basta Ransomware Playbook
blogs_qualys·2025-02-25
Defense Lessons From the Black Basta Ransomware Playbook
## Table of Contents
Know Your Enemys Playbook
Attackers Move Fast
How Qualys Can Help
The cybersecurity world was rocked last week by a massive leak of Black Basta’s internal communications that emerged from the group’s chat logs. Triggered by internal conflicts and a retaliatory data dump following attacks on Russian banks, the exposed records offer a rare glimpse into Black Basta’s tactics, operations, and leadership.
We’ve analyzed these newly unveiled tactics, and in this blog, we equip security teams with clear, actionable insights. We aim to highlight the key lessons learned—like immediate patching, tighter access controls, and rapid incident response—and provide an urgent call to action. This practical guide aims to help organizations strengthen their defenses against evolving
Qualys
Defense Lessons From the Black Basta Ransomware Playbook | Qualys
blogs_qualys·2025-02-25
Defense Lessons From the Black Basta Ransomware Playbook | Qualys
#### Table of Contents
- Know Your Enemys Playbook
- Attackers Move Fast
- How Qualys Can Help
The cybersecurity world was rocked last week by a massive leak of Black Basta’s internal communications that emerged from the group’s chat logs. Triggered by internal conflicts and a retaliatory data dump following attacks on Russian banks, the exposed records offer a rare glimpse into Black Basta’s tactics, operations, and leadership.
We’ve analyzed these newly unveiled tactics, and in this blog, we equip security teams with clear, actionable insights. We aim to highlight the key lessons learned—like immediate patching, tighter access controls, and rapid incident response—and provide an urgent call to action. This practical guide aims to help organizations strengthen their defenses against ev
Talos
Threat Source Newsletter (April 15, 2021)
blogs_talos·2021-04-15
Threat Source Newsletter (April 15, 2021)
Newsletter compiled by Jon Munshaw.
Good afternoon, Talos readers.
If you missed our webinar last week, we've got you covered. We've uploaded an extended version to our YouTube page that includes the scripts used in the presentation. This video will show you how to reverse-engineer and detect Android malware.
We also had Patch Tuesday this week, which featured some more vulnerabilities in Microsoft Exchange Server. Here is a full breakdown of the issues you should know about and Snort rules to keep users protected from exploitation. Cisco Talos researchers specifically discovered multiple vulnerabilities in Azure Sphere that were patched this month. For more on those specifically, check out the full Vulnerability Spotlight.
## Upcoming public engagements with Talos
Title: Snort 3 and
Talos
Threat Source Newsletter (April 15, 2021)
blogs_talos·2021-04-15
Threat Source Newsletter (April 15, 2021)
## Threat Source Newsletter (April 15, 2021)
Newsletter compiled by Jon Munshaw.
Good afternoon, Talos readers.
If you missed our webinar last week, we've got you covered. We've uploaded an extended version to our YouTube page that includes the scripts used in the presentation. This video will show you how to reverse-engineer and detect Android malware .
We also had Patch Tuesday this week , which featured some more vulnerabilities in Microsoft Exchange Server. Here is a full breakdown of the issues you should know about and Snort rules to keep users protected from exploitation. Cisco Talos researchers specifically discovered multiple vulnerabilities in Azure Sphere that were patched this month. For more on those specifically, check out the full Vulnerability Spotlight .
## Upcoming p
Qualys
April 2021 Patch Tuesday – 108 Vulnerabilities, 19 Critical, Adobe
blogs_qualys·2021-04-14·CVSS 7.8
CVE-2021-28310 [HIGH] April 2021 Patch Tuesday – 108 Vulnerabilities, 19 Critical, Adobe
This month’s Microsoft Patch Tuesday addresses 108 vulnerabilities, of which 19 are rated critical severity and 88 are rated high severity. Adobe released patches for its Photoshop, Digital Editions, and Bridge products.
## CVE-2021-28310: Win32k Elevation of Privilege Vulnerability
Microsoft released patches addressing another 0-day vulnerability (CVE-2021-28310). CVE-2021-28310 is an out-of-bounds (OOB) write vulnerability in dwmcore.dll, which is part of Desktop Window Manager (dwm.exe). There is a public exploit available which is being used in the wild. BITTER APT group is suspected of exploiting this CVE in the wild. This CVE has a temporal score of 7.2 from the vendor and should be prioritized for patching.
## Microsoft Exchange Server Remote Code Execution (RCE) Vulnerabilities
Qualys
April 2021 Patch Tuesday – 108 Vulnerabilities, 19 Critical, Adobe | Qualys
blogs_qualys·2021-04-14·CVSS 7.8
CVE-2021-28310 [HIGH] April 2021 Patch Tuesday – 108 Vulnerabilities, 19 Critical, Adobe | Qualys
This month’s Microsoft Patch Tuesday addresses 108 vulnerabilities, of which 19 are rated critical severity and 88 are rated high severity. Adobe released patches for its Photoshop, Digital Editions, and Bridge products.
#### CVE-2021-28310: Win32k Elevation of Privilege Vulnerability
Microsoft released patches addressing another 0-day vulnerability (CVE-2021-28310). CVE-2021-28310 is an out-of-bounds (OOB) write vulnerability in dwmcore.dll, which is part of Desktop Window Manager (dwm.exe). There is a public exploit available which is being used in the wild. BITTER APT group is suspected of exploiting this CVE in the wild. This CVE has a temporal score of 7.2 from the vendor and should be prioritized for patching.
#### Microsoft Exchange Server Remote Code Execution (RCE) Vulnerabilit
Talos
Microsoft Patch Tuesday for April 2021 — Snort rules and prominent vulnerabilities
blogs_talos·2021-04-13·CVSS 7.8
[HIGH] Microsoft Patch Tuesday for April 2021 — Snort rules and prominent vulnerabilities
## Microsoft Patch Tuesday for April 2021 — Snort rules and prominent vulnerabilities
By Jon Munshaw, with contributions from Vanja Svajcer.
Microsoft released its monthly security update Tuesday, disclosing 108 vulnerabilities across its suite of products, the most in any month so far this year.
Four new remote code execution vulnerabilities in Microsoft Exchange Server are included in today's security update. Microsoft disclosed multiple zero-day vulnerabilities in Exchange Server earlier this year that attackers were exploiting in the wild. Talos encourages everyone with an affected product to update as soon as possible if they have not already and put other mitigation strategies into place in the meantime. Users can also detect the exploitation of the previously disclosed vulnerabil
Krebs
Microsoft Patch Tuesday, April 2021 Edition
blogs_krebs·2021-04-13·CVSS 7.8
[HIGH] Microsoft Patch Tuesday, April 2021 Edition
Microsoft today released updates to plug at least 110 security holes in its Windows operating systems and other products. The patches include four security fixes for Microsoft Exchange Server — the same systems that have been besieged by attacks on four separate (and zero-day) bugs in the email software over the past month. Redmond also patched a Windows flaw that is actively being exploited in the wild.
Nineteen of the vulnerabilities fixed this month earned Microsoft’s most-dire “Critical” label, meaning they could be used by malware or malcontents to seize remote control over vulnerable Windows systems without any help from users.
Microsoft released updates to fix four more flaws in Exchange Server versions 2013-2019 ( CVE-2021-28480 , CVE-2021-28481 , CVE-2021-28482 , CVE-2021-28483
Talos
Microsoft Patch Tuesday for April 2021 — Snort rules and prominent vulnerabilities
blogs_talos·2021-04-13·CVSS 7.8
[HIGH] Microsoft Patch Tuesday for April 2021 — Snort rules and prominent vulnerabilities
By Jon Munshaw, with contributions from Vanja Svajcer.
Microsoft released its monthly security update Tuesday, disclosing 108 vulnerabilities across its suite of products, the most in any month so far this year.
Four new remote code execution vulnerabilities in Microsoft Exchange Server are included in today's security update. Microsoft disclosed multiple zero-day vulnerabilities in Exchange Server earlier this year that attackers were exploiting in the wild. Talos encourages everyone with an affected product to update as soon as possible if they have not already and put other mitigation strategies into place in the meantime. Users can also detect the exploitation of the previously disclosed vulnerabilities with Cisco Secure IPS.
The new vulnerabilities Microsoft disclosed today are ide
Tenable
Microsoft’s April 2021 Patch Tuesday Addresses 108 CVEs (CVE-2021-28310)
blogs_tenable·2021-04-13·CVSS 7.8
[HIGH] Microsoft’s April 2021 Patch Tuesday Addresses 108 CVEs (CVE-2021-28310)
## Cloud Exposure
Tenable Cloud Security (CNAPP) Request a demo
Tenable Cloud Vulnerability Management Request a demo
Tenable CIEM Request a demo
Secure your cloud
## Vulnerability Exposure
Tenable Vulnerability Management Try for free
Tenable Security Center Request a demo
Tenable Web App Scanning Try for free
Tenable Patch Management Request a demo
Tenable Enclave Security Request a demo
Tenable Attack Surface Management Request a demo
Tenable Nessus Try for free
## AI Exposure
Tenable AI Exposure Request a demo
## OT/IoT Exposure
Tenable OT Security Request a demo
## Identity Exposure
Tenable Identity Exposure Request a demo
## Business needs
Active Directory
AI Security Posture Management (AI-SPM)
AWS security
Azure security
Cloud Security Posture Man
Krebs
Microsoft Patch Tuesday, April 2021 Edition
blogs_krebs·2021-04-13·CVSS 7.8
[HIGH] Microsoft Patch Tuesday, April 2021 Edition
Microsoft today released updates to plug at least 110 security holes in its Windows operating systems and other products. The patches include four security fixes for Microsoft Exchange Server — the same systems that have been besieged by attacks on four separate (and zero-day) bugs in the email software over the past month. Redmond also patched a Windows flaw that is actively being exploited in the wild.
Nineteen of the vulnerabilities fixed this month earned Microsoft’s most-dire “Critical” label, meaning they could be used by malware or malcontents to seize remote control over vulnerable Windows systems without any help from users.
Microsoft released updates to fix four more flaws in Exchange Server versions 2013-2019 (CVE-2021-28480, CVE-2021-28481, CVE-2021-28482, CVE-2021-28483). In
Tenable
CVE-2021-28480, CVE-2021-28481, CVE-2021-28482, CVE-2021-28483: Four Critical Microsoft Exchange Server Vulnerabilities Patched in April Patch Tuesday
blogs_tenable·2021-04-13·CVSS 9.8
[CRITICAL] CVE-2021-28480, CVE-2021-28481, CVE-2021-28482, CVE-2021-28483: Four Critical Microsoft Exchange Server Vulnerabilities Patched in April Patch Tuesday
## Cloud Exposure
Tenable Cloud Security (CNAPP) Request a demo
Tenable Cloud Vulnerability Management Request a demo
Tenable CIEM Request a demo
Secure your cloud
## Vulnerability Exposure
Tenable Vulnerability Management Try for free
Tenable Security Center Request a demo
Tenable Web App Scanning Try for free
Tenable Patch Management Request a demo
Tenable Enclave Security Request a demo
Tenable Attack Surface Management Request a demo
Tenable Nessus Try for free
## AI Exposure
Tenable AI Exposure Request a demo
## OT/IoT Exposure
Tenable OT Security Request a demo
## Identity Exposure
Tenable Identity Exposure Request a demo
## Business needs
Active Directory
AI Security Posture Management (AI-SPM)
AWS security
Azure security
Cloud Security Posture Man
Crowdstrike
2021 April Patch Tuesday: Updates and Analysis
blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] 2021 April Patch Tuesday: Updates and Analysis
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Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
How Charlotte AI AgentWorks Fuels Security's Agentic Ecosystem Mar 25, 2026
Video Highlights the 4 Key Steps to Successful Incident Response Dec 02, 2019
Helping Non-Security Stakeholders Understand ATT&CK in 10 Minutes or Less [VI
Crowdstrike
2021 April Patch Tuesday: Updates and Analysis
blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] 2021 April Patch Tuesday: Updates and Analysis
How CrowdStrike is Accelerating Exposure Evaluation as Adversaries Gain Speed Apr 06, 2026
STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
Falcon for IT Supports Windows Secure Boot Certificate Lifecycle Management Apr 01, 2026
Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
How CrowdStrike is Accelerating Exposure Evaluation as Adversaries Gain Speed Apr 06, 2026
STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
Falcon for IT Supports Windows Secure Boot Certificate Lifecycle Management Apr 01, 2026
Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
Video Highlights the 4 Key Steps to Successful Incident Response Dec 02, 2019
Helping Non-Security Stakeholders Understand AT
2021-04-13
Published
Exploited in the wild