EUVD-2026-47758
GHSA-5xcx-3qx2-qv4x
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from Vendor (VulnCheck) · only source for this CVE.
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Denial of service in FFmpeg's libavformat RTP/ASF demuxer (versions 0.6.3 through 8.1.2) lets remote attackers exhaust CPU by delivering a crafted RTP/ASF stream. The rtp_asf_fix_header function in rtpdec_asf.c omits a minimum-chunksize check while iterating ASF objects, so a chunksize below the 24-byte ASF object header minimum leaves the loop pointer static and spins forever. …
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Recommended ActionAI
Within 24 hours, inventory all systems running FFmpeg versions 0.6.3 through 8.1.2 and segment or restrict network access to these systems if patch deployment cannot be completed immediately. …
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Same technique Denial Of Service
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External POC / Exploit Code
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