CVE-2026-69968
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Relative Path Traversal in Windows Libarchive

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description
Relative path traversal in Windows Libarchive allows an unauthorized attacker to perform tampering over a network.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-16
Generated
2026-10-19
AI Q&A
2026-10-14
EPSS Evaluated
2026-10-18
NVD
CVE-2026-69968
EUVD
EUVD-2026-99122

Affected Vendors & Products

Showing 14 associated CPEs
Vendor Product Version / Range
Microsoft Windows 10 Version 1809 10.0.17763.0
Microsoft Windows 10 Version 21H2 10.0.19044.0
Microsoft Windows 10 Version 22H2 10.0.19045.0
Microsoft Windows 11 version 23H2 10.0.22631.0
Microsoft Windows 11 Version 23H2 10.0.22631.0
Microsoft Windows 11 Version 24H2 10.0.26100.0
Microsoft Windows 11 Version 25H2 10.0.26200.0
Microsoft Windows 11 version 26H1 10.0.28000.0
Microsoft Windows 11 Version 26H2 10.0.26300.0
Microsoft Windows Server 2019 10.0.17763.0
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0
Microsoft Windows Server 2022 10.0.20348.0
Microsoft Windows Server 2025 10.0.26100.0
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-23 The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.

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Executive Summary

This vulnerability is a relative path traversal issue in Windows Libarchive. It allows an unauthorized attacker to perform tampering over a network by manipulating file paths.

Impact Analysis

An attacker could modify files or data on your system without authorization. This could lead to data corruption, unauthorized changes, or other malicious activities depending on the attacker's goals.

Compliance Impact

This vulnerability allows unauthorized tampering via relative path traversal, which could lead to unauthorized data modification. This may impact compliance with GDPR (data integrity requirements) and HIPAA (integrity and availability of protected health information).

Mitigation Strategies

Apply the latest security updates from Microsoft to address the relative path traversal vulnerability in Windows Libarchive. Monitor Microsoft's update guide for patches and install them promptly.

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