CVE-2024-43495: Windows libarchive Remote Code Execution Vulnerability

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-09-10 · updated 2026-08-10
Weakness: CWE-190

Description

Windows libarchive Remote Code Execution Vulnerability

Affected products

Microsoft Windows 11: before 10.0.22621.3880 — fixed in 10.0.22621.3880
Microsoft Windows 11: before 10.0.22631.3880 — fixed in 10.0.22631.3880
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): before 10.0.25398.1009 — fixed in 10.0.25398.1009
Microsoft Windows 11: from 10.0.22621.0 before 10.0.22621.3880 — fixed in 10.0.22621.3880
Microsoft Windows 11 version 22H3: from 10.0.22631.0 before 10.0.22631.3880 — fixed in 10.0.22631.3880
Microsoft Windows 11: from 10.0.22631.0 before 10.0.22621.3880 — fixed in 10.0.22621.3880
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): from 10.0.25398.0 before 10.0.25398.1009 — fixed in 10.0.25398.1009

How to fix

Upgrade to a fixed version: Microsoft Windows 11 10.0.22621.3880; Microsoft Windows 11 10.0.22631.3880; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1009; Microsoft Windows 11 10.0.22621.3880; Microsoft Windows 11 version 22H3 10.0.22631.3880; Microsoft Windows 11 10.0.22621.3880; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1009. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43495

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