MEDIUM 4.7 Microsoft

CVE-2026-31789

Heap Buffer Overflow in Hexadecimal Conversion

Microsoft Security Update 2026-Apr: Heap Buffer Overflow in Hexadecimal Conversion

Affected Products

azl3 openssl 3.3.5-4 on Azure Linux 3.0
azl3 nodejs24 24.13.0-3 on Azure Linux 3.0
azl3 qemu 9.1.0-1 on Azure Linux 3.0
azl3 rust 1.90.0-6 on Azure Linux 3.0
azl3 nodejs24 24.14.1-1 on Azure Linux 3.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-31789
https://nvd.nist.gov/vuln/detail/CVE-2026-31789

Published: 2026-04-14 · Source: Microsoft · Feed updated: 2026-09-19

This medium severity vulnerability with a CVSS score of 4.7 was published on 2026-04-14 via Microsoft. Affected: azl3 openssl 3.3.5-4 on Azure Linux 3.0, azl3 nodejs24 24.13.0-3 on Azure Linux 3.0, azl3 qemu 9.1.0-1 on Azure Linux 3.0 and 2 more.

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