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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.

CVSS 4.0 · 8.9 High EPSS < 1% KEV · Not listed
Vendors
X.org
Products
Libxrender
CVE-2016-7949

libXrender: Insufficient validation of server responses results in overflow of previously reserved memory

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.

CVSS 3.0 · 9.8 Critical EPSS 3.7% KEV · Not listed
Vendors
Fedoraproject X.org
Products
Fedora Libxrender
CVE-2016-7950

libXrender: Insufficient validation of server responses results out-of-bounds write in XRenderQueryFilters

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.

CVSS 3.0 · 9.8 Critical EPSS 2.7% KEV · Not listed
Vendors
Fedoraproject X.org
Products
Fedora Libxrender