HIGH 8.8 Microsoft PoC
CVE-2026-45447
Heap Use-After-Free in the PKCS7_verify() Function
Microsoft Security Update 2026-Jun: Heap Use-After-Free in the PKCS7_verify() Function
Affected Products
- azl3 openssl 3.3.7-3 on Azure Linux 3.0
- azl3 edk2 20240524git3e722403cd16-17 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45447
- https://nvd.nist.gov/vuln/detail/CVE-2026-45447
This high severity vulnerability with a CVSS score of 8.8 was published on 2026-06-09 via Microsoft. 🚨 A public proof-of-concept exploit is available on GitHub. Affected: azl3 openssl 3.3.7-3 on Azure Linux 3.0, azl3 edk2 20240524git3e722403cd16-17 on Azure Linux 3.0.
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