x.org libXrender vulnerabilities

Latest x.org libXrender CVEs

Newest publication first

1. CVE-2026-88807 libXrender RenderQueryPictFormats Reply Heap-based Buffer Overflow

   Published 2026-09-21

   High·CVSS 8.9 EPSS 0.26%

   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.

2. CVE-2016-7950 The XRenderQueryFilters function in X.org libXrender before 0.9.10 allows remote X servers to trigger out-of-bounds write operations via vectors involving filter name lengths.

   Published 2016-12-13

   Critical·CVSS 9.8 EPSS 2.7%

   The XRenderQueryFilters function in X.org libXrender before 0.9.10 allows remote X servers to trigger out-of-bounds write operations via vectors involving filter name lengths.

3. CVE-2016-7949 Multiple buffer overflows in the (1) XvQueryAdaptors and (2) XvQueryEncodings functions in X.org libXrender before 0.9.10 allow remote X servers to trigger out-of-bounds write operations via vectors i...

   Published 2016-12-13

   Critical·CVSS 9.8 EPSS 3.7%

   Multiple buffer overflows in the (1) XvQueryAdaptors and (2) XvQueryEncodings functions in X.org libXrender before 0.9.10 allow remote X servers to trigger out-of-bounds write operations via vectors involving length fields.

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.