CVE-2026-86476
highpriority · track · 44EPSS 0.002 · 9 %ileexploit · PoCDEUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- 0xSemizzz/CVE-2026-864760xSemizzz/CVE-2026-86476PoC · poc_in_github
affected products (2)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3827GStreamer: Mehrere SchwachstellenDeutsch2026-10-08csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in GStreamer ausnutzen, um einen Denial of Service Zustand herbeizuführen, um Informationen offenzulegen und potenziell eine Codeausführung zu erreichen.
sources
Which sources assert this record, and when.
references (3) nvd
External citations — patches, advisories, analysis.
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