HIGH 7.3 Microsoft
CVE-2025-52881
runc: LSM labels can be bypassed with malicious config using dummy procfs files
Microsoft Security Update 2025-Nov: runc: LSM labels can be bypassed with malicious config using dummy procfs files
Affected Products
- cbl2 moby-runc 1.1.9-9 on CBL Mariner 2.0
- cbl2 kubernetes 1.28.4-19 on CBL Mariner 2.0
- azl3 kubernetes 1.30.10-14 on Azure Linux 3.0
- azl3 kubernetes 1.30.10-16 on Azure Linux 3.0
- cbl2 kubernetes 1.28.4-21 on CBL Mariner 2.0
- azl3 kubernetes 1.30.10-18 on Azure Linux 3.0
- azl3 runc 1.3.3-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-52881
- https://nvd.nist.gov/vuln/detail/CVE-2025-52881
This high severity vulnerability with a CVSS score of 7.3 was published on 2025-11-11 via Microsoft. Affected: cbl2 moby-runc 1.1.9-9 on CBL Mariner 2.0, cbl2 kubernetes 1.28.4-19 on CBL Mariner 2.0, azl3 kubernetes 1.30.10-14 on Azure Linux 3.0 and 4 more.
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