CRITICAL 9.8 Microsoft
CVE-2025-71074
functionfs: fix the open/removal races
Microsoft Security Update 2026-Jan: functionfs: fix the open/removal races
Affected Products
- cbl2 kernel 5.15.200.1-1 on CBL Mariner 2.0
- cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
- cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0
- azl3 kernel 6.6.119.3-1 on Azure Linux 3.0
- cbl2 kernel 5.15.202.1-1
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-71074
- https://nvd.nist.gov/vuln/detail/CVE-2025-71074
This critical severity vulnerability with a CVSS score of 9.8 was published on 2026-01-13 via Microsoft. Affected: cbl2 kernel 5.15.200.1-1 on CBL Mariner 2.0, cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0, cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0 and 2 more.
Risk Timeline
CVE Disclosed2026-01-13 · 259 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2025-71074NVD / MITRE
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