CVE-2021-34522
published 2021-07-14CVE-2021-34522: Microsoft Defender Remote Code Execution Vulnerability
PriorityP342high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
2.55%
83.2th percentile
Microsoft Defender Remote Code Execution Vulnerability
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | malware_protection_engine | < 1.1.18242.0 | 1.1.18242.0 |
| microsoft | microsoft_malware_protection_engine | — | — |
| msrc | microsoft_malware_protection_engine | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
vendor_msrc7.8HIGH
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GHSA
GHSA-6x55-2hvm-xqpr: Microsoft Defender Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-34464
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2021-34522 [HIGH] GHSA-6x55-2hvm-xqpr: Microsoft Defender Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-34464
Microsoft Defender Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-34464.
GHSA
GHSA-xcjg-3wp4-wv26: Microsoft Defender Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-34522
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2021-34464 [HIGH] GHSA-xcjg-3wp4-wv26: Microsoft Defender Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-34522
Microsoft Defender Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-34522.
Microsoft
Microsoft Defender Remote Code Execution Vulnerability
vendor_msrc·2021-07-13·CVSS 7.8
CVE-2021-34522 [HIGH] Microsoft Defender Remote Code Execution Vulnerability
Microsoft Defender Remote Code Execution Vulnerability
FAQ:
References
Identification
First version of the Microsoft Malware Protection Engine with this vulnerability addressed
Version 1.1.18242.0
See Manage Updates Baselines Microsoft Defender Antivirus for more information.
Microsoft Defender is disabled in my environment, why are vulnerability scanners showing that I am vulnerable to this issue?
Vulnerability scanners are looking for specific binaries and version numbers on devices. Microsoft Defender files are still on disk even when disabled. Systems that have disabled Microsoft Defender are not in an exploitable state.
Why is no action required to install this update?
In response to a constantly changing threat landscape, Microsoft frequently updates malware definitions and th
No detection rules found.
No public exploits indexed.
Wiz
5 reasons endpoint security agents are not enough | Wiz Blog
blogs_wiz·2022-02-03
5 reasons endpoint security agents are not enough | Wiz Blog
Agents have always been an inherent part of security and operations, finding a place in vulnerability scanning, threat detection, data loss prevention (DLP), remote management, virtual private networks (VPN), and more. We all know them, we all have them, and as a result, we are all faced with the burden of managing, deploying, and updating countless endpoint agents. In the cloud, this becomes even more complex since IT teams do not necessarily have control over all the deployed workloads, leading to an endless cat-and-mouse game of trying to get developers to deploy the various agents.
In this post, we discuss five security limitations of endpoint security agents: lack of coverage, deployment difficulties, an increased attack surface, susceptible high privileges, and ease of avoidance by
Tenable
Microsoft’s July 2021 Patch Tuesday Includes 116 CVEs (CVE-2021-31979, CVE-2021-33771)
blogs_tenable·2021-07-13·CVSS 7.8
[HIGH] Microsoft’s July 2021 Patch Tuesday Includes 116 CVEs (CVE-2021-31979, CVE-2021-33771)
## Cloud Exposure
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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
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Tenable Patch Management Request a demo
Tenable Enclave Security Request a demo
Tenable Attack Surface Management Request a demo
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## 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
July 2021 Patch Tuesday: Updates and Analysis
blogs_crowdstrike·CVSS 7.5
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Crowdstrike
July 2021 Patch Tuesday: Updates and Analysis
blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] July 2021 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
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2021-07-14
Published