CRITICAL 9.0 Microsoft
CVE-2026-59679
fs_read_glyphs() heap OOB read/write via encoding array index mismatch in libXfont2
Microsoft Security Update 2026-Sep: fs_read_glyphs() heap OOB read/write via encoding array index mismatch in libXfont2
Affected Products
- azl3 libXfont2 2.0.8-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59679
- https://nvd.nist.gov/vuln/detail/CVE-2026-59679
This critical severity vulnerability with a CVSS score of 9.0 was published on 2026-09-08 via Microsoft. Affected: azl3 libXfont2 2.0.8-1 on Azure Linux 3.0.
Risk Timeline
CVE Disclosed2026-09-08 · 56 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59679NVD / MITRE
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