CVE Catalog

CVE-2026-64834

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.53%

41th percentile - higher than 41% of all known CVEs

Summary

FFmpeg versions 0.6.3 through 8.1.2 contain an infinite loop vulnerability in the RTP/ASF demuxer (libavformat/rtpdec_asf.c). The rtp_asf_fix_header function fails to validate a minimum chunksize, allowing a remote attacker to send a crafted RTP/ASF stream causing CPU exhaustion and denial of service.

Risk Assessment

An attacker can cause a denial of service (DoS) by exhausting CPU resources, disrupting applications using FFmpeg.

Recommendation

Update FFmpeg to version 8.1.3 or later.

Other vulnerabilities in FFmpeg

See all
Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS