CVE-2026-125703

Gst-plugins-bad: gst-plugins-bad: bounds check errors in mxf vanc packet handling

Published Nov 10, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
A flaw was found in the GStreamer gst-plugins-bad MXF plugin. Insufficient bounds checks when parsing crafted VANC data can cause an out-of-bounds read in the demuxer, while an incorrect buffer size calculation when muxing multiple ancillary packets can cause an out-of-bounds write. Processing affected content may crash the application, resulting in a denial of service.

Remediation

Vendor Workaround

There is no complete mitigation while processing untrusted MXF content with the affected plugin. If MXF support is not required, disable the MXF plugin in affected GStreamer applications. Otherwise, restrict MXF inputs to trusted sources. Disabling MXF handling prevents legitimate MXF playback and transcoding.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

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'}

Type Values Removed Values Added
Description A flaw was found in the GStreamer gst-plugins-bad MXF plugin. Insufficient bounds checks when parsing crafted VANC data can cause an out-of-bounds read in the demuxer, while an incorrect buffer size calculation when muxing multiple ancillary packets can cause an out-of-bounds write. Processing affected content may crash the application, resulting in a denial of service.
Title Gst-plugins-bad: gst-plugins-bad: bounds check errors in mxf vanc packet handling
First Time appeared Redhat
Redhat enterprise Linux
Redhat rhel Els
Weaknesses CWE-20
CPEs cpe:/a:redhat:enterprise_linux:10
cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:rhel_els:6
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat
Redhat enterprise Linux
Redhat rhel Els
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 12, 2026, 5:27 PM
Reserved
Nov 10, 2026, 10:23 AM
Status
Awaiting Analysis
Published
Nov 10, 2026, 11:16 AM
Modified
Nov 12, 2026, 6:17 PM