MEDIUM 4.3 Microsoft

CVE-2025-8291

ZIP64 End of Central Directory (EOCD) Locator record offset not checked

Microsoft Security Update 2025-Oct: ZIP64 End of Central Directory (EOCD) Locator record offset not checked

Affected Products

azl3 python3 3.12.9-5 on Azure Linux 3.0
cbl2 python3 3.9.19-16 on CBL Mariner 2.0
azl3 python3 3.12.9-4 on Azure Linux 3.0
cbl2 python3 3.9.19-14 on CBL Mariner 2.0
cbl2 python3 3.9.19-15 on CBL Mariner 2.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-8291
https://nvd.nist.gov/vuln/detail/CVE-2025-8291

Published: 2025-10-14 · Source: Microsoft · Feed updated: 2026-09-24

This medium severity vulnerability with a CVSS score of 4.3 was published on 2025-10-14 via Microsoft. Affected: azl3 python3 3.12.9-5 on Azure Linux 3.0, cbl2 python3 3.9.19-16 on CBL Mariner 2.0, azl3 python3 3.12.9-4 on Azure Linux 3.0 and 2 more.

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