VULNERABILITY INTELLIGENCE

CVE-2026-64833

CVSS score7.1 HIGH
EPSS probability0.40%
CISA KEVNot currently listed
Published2026-07-22
Last modified2026-10-24
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Description

FFmpeg versions 0.7.1 through 8.1.2 contain an out-of-bounds read vulnerability in the S/PDIF muxer that allows attackers to access memory beyond buffer boundaries by supplying a crafted DTS stream with a core_size value larger than the actual packet length. Attackers can exploit the missing bounds check in the spdif_header_dts4 function by providing a malicious DTS-HD audio stream during S/PDIF re-muxing to trigger unauthorized memory reads beyond the packet buffer.

Weakness classification

  • CWE-125: Out-of-bounds Read

Primary references