CVE-2025-52290 Ffmpeg - Denial of Service

Ffmpeg contains a null pointer dereference caused by improper handling in avpriv_h264_has_num_reorder_frames function, letting attackers cause denial of service via crafted media file processing.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
19 October 2026
Updated
20 October 2026
Weakness
CWE-400

Vendor fix

Update to the latest version of Ffmpeg.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs