CVE WatchOct 14, 2026

CVE-2026-86476

A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta meta

CVSS

8.4

High

EPSS

0.2%

p11

KEV

—

Exploit Today

0-100

Published: Oct 14, 2026 · Last modified: Oct 14, 2026 · CWE-787

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-10-142026-10-20

Technical description

A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets that exceed the actual backing memory allocation. The metadata is not range-checked during deserialization, and the video frame mapping code does not verify that the declared plane geometry fits within the buffer before allowing consumers to read or write video data. A local attacker who controls the sending side of a GStreamer inter-process IPC pipeline can deliver a crafted buffer carrying fabricated strides, causing the receiving process to read or write beyond heap boundaries. Successful exploitation can cause a denial of service or potentially allow code execution within the affected process.

Official references

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