CVE-2021-36976: Libarchive Remote Code Execution Vulnerability

Overview

Severity

N/A

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Publicly Disclosed

Yes

Patch Tuesday

2022-Jan

Released

2022-01-11

EPSS Score

0.19% (percentile: 41.2%)

FAQ

Why is this a MITRE Corporation CVE? CVE-2021-36976 is regarding a vulnerability in the libarchive open source library which is used by Windows. The January 2022 Windows Security Updates include the most recent version of this library which addresses the vulnerability and others. Please see libarchive CVEs for more information regarding all of the vulnerabilities that have been addressed.

Affected Products (21)

Windows

• Windows 10 Version 1809 for 32-bit Systems
• Windows 10 Version 1809 for x64-based Systems
• Windows 10 Version 1809 for ARM64-based Systems
• Windows Server 2019
• Windows Server 2019 (Server Core installation)
• Windows 10 Version 1909 for 32-bit Systems
• Windows 10 Version 1909 for x64-based Systems
• Windows 10 Version 1909 for ARM64-based Systems
• Windows 10 Version 21H1 for x64-based Systems
• Windows 10 Version 21H1 for ARM64-based Systems
• Windows 10 Version 21H1 for 32-bit Systems
• Windows Server 2022
• Windows Server 2022 (Server Core installation)
• Windows 10 Version 20H2 for 32-bit Systems
• Windows 10 Version 20H2 for ARM64-based Systems
• Windows Server, version 20H2 (Server Core Installation)
• Windows 11 version 21H2 for x64-based Systems
• Windows 11 version 21H2 for ARM64-based Systems
• Windows 10 Version 21H2 for 32-bit Systems
• Windows 10 Version 21H2 for ARM64-based Systems
• Windows 10 Version 21H2 for x64-based Systems

Security Updates (5)

• 5009557
• 5009545
• 5009543
• 5009555
• 5009566

Revision History

• 2022-01-11: Information published.