Threats Tagged 'cve-2026-12892'

Multiple security vulnerabilities have been identified and fixed in the gstreamer-plugins-bad component. These include out-of-bounds reads and writes, heap and stack buffer overflows, and improper validation issues affecting various parsers such as H.264, H.265, H.266, WebRTC, IPv4/TCP headers, and DTLS handshake processing. The issues could lead to memory corruption or crashes. No CVSS score is provided, but the severity is assessed as high due to the nature of the vulnerabilities.

A flaw was found in GStreamer's gst-plugins-bad package. When processing a specially crafted H.264 video file containing malformed MVC or SVC extension slice NAL units, a 1-byte heap out-of-bounds read can occur during parsing. This happens when the parser attempts to check slice boundary information without first verifying that the NAL unit contains enough data beyond the extension header. An attacker could exploit this by tricking a user into opening a malicious H.264 video file, potentially causing the application to crash or leak a single byte of heap memory.