Description
A flaw was found in GStreamer's gst-plugins-bad package. A use of uninitialized memory vulnerability exists in the H.265 (HEVC) bitstream parser when processing Video Parameter Sets that declare more than one HRD (Hypothetical Reference Decoder) parameter set. A remote attacker could exploit this by providing a crafted H.265 media file or stream that, when processed by an application using GStreamer, causes unpredictable parser behavior and may crash the application. This can lead to a denial of service for any application using GStreamer to play back H.265 content.
Published: 2026-11-09
Score: 6.5 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Mon, 09 Nov 2026 13:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in GStreamer's gst-plugins-bad package. A use of uninitialized memory vulnerability exists in the H.265 (HEVC) bitstream parser when processing Video Parameter Sets that declare more than one HRD (Hypothetical Reference Decoder) parameter set. A remote attacker could exploit this by providing a crafted H.265 media file or stream that, when processed by an application using GStreamer, causes unpredictable parser behavior and may crash the application. This can lead to a denial of service for any application using GStreamer to play back H.265 content.
Title Gstreamer1-plugins-bad-free: gst-plugins-bad: use of uninitialized gsth265hrdparams in gst_h265_parse_vps() multi-hrd workaround loop
First Time appeared Redhat
Redhat enterprise Linux
Redhat rhel Els
Weaknesses CWE-457
CPEs cpe:/a:redhat:enterprise_linux:10
cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat
Redhat enterprise Linux
Redhat rhel Els
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}


Subscriptions

Redhat Enterprise Linux Rhel Els
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-11-09T13:01:00.326Z

Reserved: 2026-11-03T16:32:50.045Z

Link: CVE-2026-121611

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-09T13:17:07.060

Modified: 2026-11-09T13:17:07.180

Link: CVE-2026-121611

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-09T14:30:12Z

Weaknesses