CVE-2026-53702
MEDIUM EPSS 13.4%
Published Jun 11, 20262w ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Published Jun 11, 2026 2w ago
Last Modified Jun 17, 2026 1w ago
Description
A stack buffer overflow flaw was found in the GStreamer H.265 codec parser library (gst-plugins-bad). When parsing a buffering period SEI message, the parser uses an incorrect loop bound derived from cpb_cnt_minus1[i] (the loop index) instead of the sub-layer 0 CPB count cpb_cnt_minus1[0] from the referenced Sequence Parameter Set. A crafted H.265 video file or stream can cause the parser to write beyond the bounds of stack-allocated CPB delay arrays, resulting in a crash or potential stack memory corruption.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
13.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-787 Out-of-bounds Write Memory Safety
References 2
- access.redhat.com https://access.redhat.com/security/cve/CVE-2026-53702
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2487612
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.