HIGH 7.5 Microsoft

CVE-2026-34180

Heap Buffer Over-read in ASN.1 Content Parsing

Microsoft Security Update 2026-Jun: Heap Buffer Over-read in ASN.1 Content Parsing

Affected Products

azl3 edk2 20240524git3e722403cd16-17 on Azure Linux 3.0
azl3 openssl 3.3.5-5 on Azure Linux 3.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34180
https://nvd.nist.gov/vuln/detail/CVE-2026-34180

Published: 2026-06-09 · Source: Microsoft · Feed updated: 2026-09-18

This high severity vulnerability with a CVSS score of 7.5 was published on 2026-06-09 via Microsoft. Affected: azl3 edk2 20240524git3e722403cd16-17 on Azure Linux 3.0, azl3 openssl 3.3.5-5 on Azure Linux 3.0.

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