What is CVE-2025-68146?

CVE-2025-68146 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. filelock has TOCTOU race condition that allows symlink attacks during lock file creation

Which CVE IDs does CVE-2025-68146 cover?

CVE-2025-68146 covers the following CVE IDs: CVE-2025-68146. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-68146?

CVE-2025-68146 has a CVSS v3 base score of 6.3, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-68146?

CVE-2025-68146 affects 4 products, including: azl3 python-filelock 3.14.0-1 on Azure Linux 3.0; cbl2 python-filelock 3.0.12-13; cbl2 python-filelock 3.0.12-13 on CBL Mariner 2.0; cbl2 python-filelock 3.0.12-13 on CBL-Mariner 2.0.

CVE-2025-68146MediumCVSS 6.3

filelock has TOCTOU race condition that allows symlink attacks during lock file creation

Vendor

Microsoft Security Response Center (MSRC)

Published

December 19, 2025

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-68146 →

🎯 Affected products4

azl3 python-filelock 3.14.0-1 on Azure Linux 3.0
cbl2 python-filelock 3.0.12-13
cbl2 python-filelock 3.0.12-13 on CBL Mariner 2.0
cbl2 python-filelock 3.0.12-13 on CBL-Mariner 2.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 3.20.1-1 KBCBL-Mariner Releases (Security Update) — fixed build 3.0.12-14

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-68146
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade