LOW 2.9 Microsoft
CVE-2026-27171
zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.
Microsoft Security Update 2026-Feb: zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.
Affected Products
- azl3 zlib 1.3.1-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27171
- https://nvd.nist.gov/vuln/detail/CVE-2026-27171
This low severity vulnerability with a CVSS score of 2.9 was published on 2026-02-10 via Microsoft. Affected: azl3 zlib 1.3.1-1 on Azure Linux 3.0.
vulnfeed aggregates 11644 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.