CVE-2026-119777 GStreamer gst-plugins-bad - Buffer Overflow

GStreamer gst-plugins-bad H.266/VVC parser contains a stack-based buffer overflow caused by integer overflow when parsing profile, tier, and level fields, letting attackers cause crashes or execute code, exploit requires crafted malformed media file.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.19% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Remote Code Execution, Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
30 October 2026
Updated
1 November 2026
Weakness
CWE-787

Vendor fix

Update to the latest version of GStreamer gst-plugins-bad containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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