Stack-based buffer overflow in gst-plugins-base and gstreamer - #VU141127
Published: August 6, 2026
Vulnerability identifier: #VU141127
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code or cause a denial of service.
The vulnerability exists due to stack-based buffer overflow in the Opus audio decoder when processing crafted Opus streams with more than 64 channels. A remote attacker can supply a specially crafted Opus stream to execute arbitrary code or cause a denial of service.
The issue is triggered because the decoder uses the channel count from the stream header for memory operations on fixed-size 64-element arrays.
Affected software
gst-plugins-base
gstreamer
gstreamer
Remediation
Install security update from vendor's website.
gst-plugins-base - update to 1.28.5
gstreamer - update to 1.28.5
gstreamer - update to 1.28.5