CVE-2026-12891
Gstreamer1-plugins-bad: gstreamer1-plugins-bad: global buffer overflow (oob read) in h.266/vvc vui parameter parser
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in the GStreamer gst-plugins-bad package. When processing a malformed H.266/VVC video stream with a crafted aspect ratio indicator value, the H.266 parser performs an out-of-bounds read of up to 8 bytes from adjacent memory. This flaw allows an attacker to craft a malicious H.266 video file or stream that, when processed by a GStreamer-based application, could leak limited memory contents through video metadata, potentially exposing sensitive information from the application's address space.
| CWE | CWE-125 |
| Vendor | red hat |
| Product | red hat enterprise linux 10 |
| Published | Jun 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected References
Credits
Red Hat would like to thank Dr. Faruk Kazi (CoE-CNDS Lab, VJTI, Mumbai, India) and Ramesh Adhikari (CoE-CNDS Lab, VJTI, Mumbai, India) for reporting this issue.