Is there a public exploit for CVE-2026-121601?

No public exploit for CVE-2026-121601 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-121601?

CVE-2026-121601 scores CVSS 6.1 (v3.1), rated medium.

6.1 Medium

A flaw was found in GStreamer's MXF demuxer plugin (gst-plugins-bad).

CVE-2026-121601

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.

Assessment

CVSS: 6.1 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 9 November 2026
Last updated: 9 November 2026
Assigner: redhat

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

At the source

EUVD (ENISA)

References

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