HIGH 7.5 Microsoft
CVE-2026-42959
Crash during DNSSEC validation of malicious content
Microsoft Security Update 2026-May: Crash during DNSSEC validation of malicious content
Affected Products
- azl3 unbound 1.19.1-5 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42959
- https://nvd.nist.gov/vuln/detail/CVE-2026-42959
This high severity vulnerability with a CVSS score of 7.5 was published on 2026-05-12 via Microsoft. Affected: azl3 unbound 1.19.1-5 on Azure Linux 3.0.
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