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VulnerabilityPublished

CVE-2026-125703: Red Hat Enterprise Linux 10 · Improper Input Validation

Affects Red Hat Enterprise Linux 10Source CVE Database V5

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Not known to be exploited · CVSS 5.5 Medium.

Data as of 10 Nov 2026, 11:04 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.15.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10gstreamer1-plugins-bad-freeAffected–Fixed in–
Red Hat Enterprise Linux 6gstreamer-plugins-bad-freeAffected–Fixed in–
Red Hat Enterprise Linux 7gstreamer1-plugins-bad-freeAffected–Fixed in–
Red Hat Enterprise Linux 7gstreamer-plugins-bad-freeAffected–Fixed in–
Red Hat Enterprise Linux 8gstreamer1-plugins-bad-freeAffected–Fixed in–
Red Hat Enterprise Linux 9gstreamer1-plugins-bad-freeAffected–Fixed in–

AI-suggested

Red Hat advises that no complete mitigation exists while processing untrusted MXF content with the affected plugin. If MXF support is unnecessary, disable the MXF plugin in GStreamer applications. Otherwise, restrict MXF inputs to trusted sources. Disabling MXF handling will prevent legitimate MXF playback and transcoding. Users should upgrade to RHEL 10.4 or later where the issue is fixed.

Description

CVE-2026-125703 is a vulnerability in the GStreamer gst-plugins-bad MXF plugin affecting Red Hat Enterprise Linux 10 and earlier versions. It involves improper input validation causing out-of-bounds read and write errors when processing crafted VANC data in MXF files. This can lead to application crashes and denial of service. The vulnerability does not impact confidentiality or integrity but affects availability. Versions through RHEL 10.3 are affected, while RHEL 10.4 and later are not. No complete mitigation exists other than disabling the MXF plugin or restricting inputs to trusted sources.

References

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