CVE-2026-121601 (GCVE-0-2026-121601)
Vulnerability from cvelistv5 – Published: 2026-11-09 13:00 – Updated: 2026-11-09 16:29
VLAI
EPSS
VEX
Title
Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: out-of-bounds read in mxfdemux via unchecked delta_id and slice index
Summary
A flaw was found in GStreamer's MXF demuxer plugin (gst-plugins-bad). When processing a specially crafted MXF media file, the demuxer indexes its internal delta-entry and slice-offset tables using values from the file without validating that they are within the bounds of the allocated arrays. A local attacker who tricks a user into opening a malicious MXF file can cause the application to crash (denial of service) and may be able to read limited amounts of heap memory adjacent to the affected arrays.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 16:29 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
redhat
CNA
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-121601 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2565920 | issue-trackingx_refsource_REDHAT |
| https://gstreamer.freedesktop.org/security/sa-202… |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/a:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/a:redhat:enterprise_linux:9
|
Date Public
2026-11-09 11:03
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