CVE-2026-53702

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 v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-53702
https://bugzilla.redhat.com/show_bug.cgi?id=2487612

Configurations

No configuration.

History

11 Jun 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-11 19:16

Updated : 2026-06-17 10:57

NVD link : CVE-2026-53702

Mitre link : CVE-2026-53702

CVE.ORG link : CVE-2026-53702

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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