CRITICAL 9.8 Microsoft

CVE-2026-22184

zlib <= 1.3.1.2 untgz Global Buffer Overflow in TGZfname()

Microsoft Security Update 2026-Jan: zlib <= 1.3.1.2 untgz Global Buffer Overflow in TGZfname()

Affected Products

azl3 ceph 18.2.2-12 on Azure Linux 3.0
azl3 crash 9.0.0-1 on Azure Linux 3.0
azl3 gcc 13.2.0-7 on Azure Linux 3.0
cbl2 binutils 2.37-19 on CBL Mariner 2.0
cbl2 grpc 1.42.0-11 on CBL Mariner 2.0
azl3 nmap 7.95-2 on Azure Linux 3.0
azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0
cbl2 nmap 7.93-3 on CBL Mariner 2.0

References

Published: 2026-01-13 · Source: Microsoft · Feed updated: 2026-08-04

This critical severity vulnerability with a CVSS score of 9.8 was published on 2026-01-13 via Microsoft. Affected: azl3 ceph 18.2.2-12 on Azure Linux 3.0, azl3 crash 9.0.0-1 on Azure Linux 3.0, azl3 gcc 13.2.0-7 on Azure Linux 3.0 and 5 more.

Risk Timeline

CVE Disclosed2026-01-13 · 202 days ago

Remediation Resources

Official Advisory

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-22184

NVD / MITRE

nvd.nist.gov/vuln/detail/CVE-2026-22184

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