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Status published
High
CVE-2025-9951
Remote code execution via Heap Buffer Overflow in FFmpeg JPEG2000
Vulnerability Description
A heap-buffer-overflow write exists in jpeg2000dec FFmpeg which allows an attacker to potentially gain remote code execution or cause denial of service via the channel definition cdef atom of JPEG2000.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
FFmpeg
View all reports →Affected Software
FFmpeg
Vulnerable Versions:
< 8.0
Timeline
Official Publish:
September 9th, 2025
Last Modified:
February 26th, 2026
Added to House:
July 22nd, 2026