CVE-2022-23277
published 2022-03-09CVE-2022-23277: Microsoft Exchange Server Remote Code Execution Vulnerability
PriorityP274high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EXPLOIT
EPSS
41.11%
98.7th 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 < 15.00.1497.033 | 15.00.1497.033 |
| microsoft | microsoft_exchange_server_2016_cumulative_update_21 | >= 15.01.0 < 15.01.2308.027 | 15.01.2308.027 |
| microsoft | microsoft_exchange_server_2016_cumulative_update_22 | >= 15.0.0 < 15.01.2375.024 | 15.01.2375.024 |
| microsoft | microsoft_exchange_server_2019_cumulative_update_10 | >= 15.02.0 < 15.02.0922.027 | 15.02.0922.027 |
| microsoft | microsoft_exchange_server_2019_cumulative_update_11 | >= 15.02.0 < 15.02.0986.022 | 15.02.0986.022 |
| msrc | microsoft_exchange_server_2013_cumulative_update_23 | — | — |
| msrc | microsoft_exchange_server_2016_cumulative_update_21 | — | — |
| msrc | microsoft_exchange_server_2016_cumulative_update_22 | — | — |
| msrc | microsoft_exchange_server_2019_cumulative_update_10 | — | — |
| msrc | microsoft_exchange_server_2019_cumulative_update_11 | — | — |
Detection & IOCsextracted from sources · hover to see the quote
snort↗
59210 - 59217, 59220 and 59221
- →Exploitation requires an authenticated network call targeting Exchange Server accounts; monitor for authenticated Exchange Web Services (EWS) or HTTP requests that attempt to trigger code execution in the server account context. ↗
- →The Metasploit module targets the ChainedSerializationBinder attack surface in Exchange Server 2019 CU10/CU11 and Exchange Server 2016 CU21/CU22 prior to Mar22SU; look for exploitation attempts against these specific CU versions. ↗
- ·Exploitation requires low-privilege authentication on the Exchange Server; unauthenticated exploitation is not possible for this CVE. ↗
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P
vendor_msrc8.8HIGH
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Microsoft
Microsoft Exchange Server Remote Code Execution Vulnerability
vendor_msrc·2022-03-08·CVSS 8.8
CVE-2022-23277 [HIGH] Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
FAQ: According to the CVSS metric, the attack vector is network (AV:N) and the user interaction is none (UI:N). What is the target used in the context of the remote code execution?
The attacker for this vulnerability could target the server accounts in an arbitrary or remote code execution. As an authenticated user, the attacker could attempt to trigger malicious code in the context of the server's account through a network call.
FAQ: According to the CVSS metric, privileges required is low (PR:L). Does the attacker need to be in an authenticated role on the Exchange Server?
Yes, the attacker must be authenticated.
Microsoft Exchange Server: Microsoft Exchange Server
Microsoft: Microsoft
Customer Action Required: Yes
Impac
GHSA
GHSA-364v-6m73-qv4g: Microsoft Exchange Server Remote Code Execution Vulnerability
ghsa_unreviewed·2022-03-10
CVE-2022-23277 [HIGH] GHSA-364v-6m73-qv4g: Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability.
No detection rules found.
Krebs
Microsoft Patch Tuesday, March 2022 Edition
blogs_krebs·2022-03-09·CVSS 8.8
[HIGH] Microsoft Patch Tuesday, March 2022 Edition
Microsoft on Tuesday released software updates to plug at least 70 security holes in its Windows operating systems and related software. For the second month running, there are no scary zero-day threats looming for Windows users, and relatively few “critical” fixes. And yet we know from experience that attackers are already trying to work out how to turn these patches into a roadmap for exploiting the flaws they fix. Here’s a look at the security weaknesses Microsoft says are most likely to be targeted first.
Greg Wiseman , product manager at Rapid7 , notes that three vulnerabilities fixed this month have been previously disclosed, potentially giving attackers a head start in working out how to exploit them. Those include remote code execution bugs CVE-2022-24512 , affecting .NET and Visu
Krebs
Microsoft Patch Tuesday, March 2022 Edition
blogs_krebs·2022-03-09·CVSS 8.8
[HIGH] Microsoft Patch Tuesday, March 2022 Edition
Microsoft on Tuesday released software updates to plug at least 70 security holes in its Windows operating systems and related software. For the second month running, there are no scary zero-day threats looming for Windows users, and relatively few “critical” fixes. And yet we know from experience that attackers are already trying to work out how to turn these patches into a roadmap for exploiting the flaws they fix. Here’s a look at the security weaknesses Microsoft says are most likely to be targeted first.
Greg Wiseman, product manager at Rapid7, notes that three vulnerabilities fixed this month have been previously disclosed, potentially giving attackers a head start in working out how to exploit them. Those include remote code execution bugs CVE-2022-24512, affecting .NET and Visual
Tenable
Microsoft’s March 2022 Patch Tuesday Addresses 71 CVEs (CVE-2022-23277, CVE-2022-24508)
blogs_tenable·2022-03-08·CVSS 8.8
[HIGH] Microsoft’s March 2022 Patch Tuesday Addresses 71 CVEs (CVE-2022-23277, CVE-2022-24508)
## Cloud Exposure
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## Business needs
Active Directory
AI Security Posture Management (AI-SPM)
AWS security
Azure security
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Qualys
March 2022 Patch Tuesday: Microsoft Releases 92 Vulnerabilities With 3 Critical; Adobe Releases 3 Advisories, 6 Vulnerabilities With 5 Critical.
blogs_qualys·2022-03-08·CVSS 8.8
[HIGH] March 2022 Patch Tuesday: Microsoft Releases 92 Vulnerabilities With 3 Critical; Adobe Releases 3 Advisories, 6 Vulnerabilities With 5 Critical.
## Table of Contents
Microsoft Patch Tuesday Summary
Notable Microsoft Vulnerabilities Patched
Notable Adobe Vulnerabilities Patched
Discover and Prioritize Patch Tuesday Vulnerabilities in VMDR
Respond by Patching
Monthly Webinar Series: This Month in Vulnerabilities & Patches
Join the webinar: This Month in Vulnerabilities & Patches
About Patch Tuesday
Contributor
## Microsoft Patch Tuesday Summary
Microsoft has fixed 92 vulnerabilities, including 21 Microsoft Edge vulnerabilities, in the March 2022 update, with three classified as critical as they allow Remote Code Execution (RCE). This month’s Patch Tuesday release includes fixes for three publicly disclosed zero-day vulnerabilities as well. As of this writing, none of this month’s list of vulnerabilities is known to be acti
Talos
Microsoft Patch Tuesday for March 2022 — Snort rules and prominent vulnerabilities
blogs_talos·2022-03-08·CVSS 8.8
[HIGH] Microsoft Patch Tuesday for March 2022 — Snort rules and prominent vulnerabilities
## Microsoft Patch Tuesday for March 2022 — Snort rules and prominent vulnerabilities
Microsoft released another relatively light security update Tuesday, disclosing 71 vulnerabilities, including fixes for issues in Azure and the Office suite of products. March’s Patch Tuesday only included two critical vulnerabilities, which is notable considering there weren’t any critical issues in February’s security update .
This month’s patch batch does not include any threats that Microsoft says have been exploited in the wild, and none of the vulnerabilities disclosed has a severity score higher than 8.8 out of 10.
The most serious issue is CVE-2022-23277 , a remote code execution vulnerability in Microsoft Exchange Server. An adversary could exploit this vulnerability to target the Exchange Ser
Talos
Microsoft Patch Tuesday for March 2022 — Snort rules and prominent vulnerabilities
blogs_talos·2022-03-08·CVSS 8.8
[HIGH] Microsoft Patch Tuesday for March 2022 — Snort rules and prominent vulnerabilities
Microsoft released another relatively light security update Tuesday, disclosing 71 vulnerabilities, including fixes for issues in Azure and the Office suite of products. March’s Patch Tuesday only included two critical vulnerabilities, which is notable considering there weren’t any critical issues in February’s security update.
This month’s patch batch does not include any threats that Microsoft says have been exploited in the wild, and none of the vulnerabilities disclosed has a severity score higher than 8.8 out of 10.
The most serious issue is CVE-2022-23277, a remote code execution vulnerability in Microsoft Exchange Server. An adversary could exploit this vulnerability to target the Exchange Server accounts with arbitrary or remote code execution, according to Microsoft. If the user
Qualys
March 2022 Patch Tuesday: Microsoft Releases 92 Vulnerabilities With 3 Critical; Adobe Releases 3 Advisories, 6 Vulnerabilities With 5 Critical. | Qualys
blogs_qualys·2022-03-08·CVSS 8.8
[HIGH] March 2022 Patch Tuesday: Microsoft Releases 92 Vulnerabilities With 3 Critical; Adobe Releases 3 Advisories, 6 Vulnerabilities With 5 Critical. | Qualys
#### Table of Contents
- Microsoft Patch Tuesday Summary
- Notable Microsoft Vulnerabilities Patched
- Notable Adobe Vulnerabilities Patched
- Discover and Prioritize Patch Tuesday Vulnerabilities in VMDR
- Respond by Patching
- Monthly Webinar Series: This Month in Vulnerabilities & Patches
- Join the webinar: This Month in Vulnerabilities & Patches
- About Patch Tuesday
- Contributor
## Microsoft Patch Tuesday Summary
Microsoft has fixed 92 vulnerabilities, including 21 Microsoft Edge vulnerabilities, in the March 2022 update, with three classified as critical as they allow Remote Code Execution (RCE). This month’s Patch Tuesday release includes fixes for three publicly disclosed zero-day vulnerabilities as well. As of this writing, none of this month’s list of vulnerabilities is know
Crowdstrike
March 2022 Patch Tuesday: Updates and Analysis
blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] March 2022 Patch Tuesday: Updates and Analysis
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Video Highlights the 4 Key Steps to Successful Incident Response Dec 02, 2019
Helping Non-Security Stakeholders Understand AT
Crowdstrike
March 2022 Patch Tuesday: Updates and Analysis
blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] March 2022 Patch Tuesday: Updates and Analysis
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 Charlotte AI AgentWorks Fuels Security's Agentic Ecosystem Mar 25, 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 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
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2022-03-09
Published