MEDIUM 6.1 Microsoft PoC
CVE-2025-11187
Improper validation of PBMAC1 parameters in PKCS#12 MAC verification
Microsoft Security Update 2026-Jan: Improper validation of PBMAC1 parameters in PKCS#12 MAC verification
Affected Products
- azl3 openvmm 0.2.0-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-11187
- https://nvd.nist.gov/vuln/detail/CVE-2025-11187
This medium severity vulnerability with a CVSS score of 6.1 was published on 2026-01-13 via Microsoft. 🚨 A public proof-of-concept exploit is available on GitHub. EPSS score: 5.1% (top 8% of all CVEs by exploitation probability). Affected: azl3 openvmm 0.2.0-1 on Azure Linux 3.0.
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