CVE-2026-88807 — libXrender RenderQueryPictFormats Reply Heap-based Buffer Overflow

A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients.

Published: 2026-09-21 · CVSS: 8.9 · CVSS 4.0

A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients.

Original CVE JSON · STIX 2.1

Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7