A heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2 ComputeScaledProperties() before libXfont2 before 2.0.8 could be used by attackers using authenticated X clients to execute code within the X server.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://gitlab.freedesktop.org/xorg/lib/libxfont/-/commit/dff957a5158da038a282a59a31fe736702732939 Patch
- https://www.openwall.com/lists/oss-security/2026/07/08/1 Mailing List, Patch, Third Party Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.8 · xNVD modified 2026-10-25 20:10
Affected (CPE criteria) 1
cpe:2.3:a:x:libxfont:*:*:*:*:*:*:*:*
References 2
- https://gitlab.freedesktop.org/xorg/lib/libxfont/-/commit/dff957a5158da038a282a59a31fe736702732939 Patch
- https://www.openwall.com/lists/oss-security/2026/07/08/1 Mailing List, Patch, Third Party Advisory