CVE-2026-64834
High · 7.5CVSS
7.5
EPSS
0.7%
Published
Jul 22, 2026
CISA due date
—
The record
FFmpeg versions 0.6.3 through 8.1.2 contain an infinite loop vulnerability in the RTP/ASF demuxer within libavformat/rtpdec_asf.c that allows remote attackers to cause denial of service by sending a crafted RTP/ASF stream. The rtp_asf_fix_header function fails to validate a minimum chunksize when iterating over ASF objects, causing the loop pointer to never advance when a chunksize is smaller than the 24-byte minimum ASF object header size, resulting in CPU exhaustion that denies service to legitimate users.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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