Multiple critical vulnerabilities in FFmpeg (CVE-2026-64830, CVSS 8.8; CVE-2026-64833, CVSS 7.1; CVE-2026-64834, CVSS 7.5) allow denial of service, arbitrary code execution, or information disclosure via crafted media files and network streams. Affected versions include ffmpeg from 0.6.3/0.7.1/2.1 through 8.1.2, depending on the specific CVE. The article does not specify a fixed version or provide workaround information.
It was discovered that FFmpeg incorrectly handled certain crafted media files in the VobSub subtitle demuxer. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-64830) It was discovered that FFmpeg incorrectly handled certain crafted DTS audio streams in the S/PDIF muxer. An attacker could possibly use this issue to cause a denial of service or expose sensitive information. (CVE-2026-64833) It was discovered that FFmpeg incorrectly handled certain crafted RTP/ASF streams. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-64834) It was discovered that FFmpeg incorrectly handled certain crafted ADX audio files. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-64835) It was discovered that FFmpeg incorrectly handled certain crafted AVI files in the TDSC video decoder. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-65703) It was discovered that FFmpeg incorrectly handled certain crafted ffconcat files processed via the TY demuxer. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 24.04 LTS. (CVE-2026-65704) It was discovered that FFmpeg incorrectly handled certain crafted video streams in the vf_floodfill video filter. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 24.04 LTS. (CVE-2026-65705) It was discovered that FFmpeg incorrectly handled certain crafted NV12 video frames in the vf_swaprect video filter. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 24.04 LTS. (CVE-2026-65706) It was discovered that FFmpeg incorrectly handled certain crafted hvcC NAL arrays in the HEVC parser. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-75141) It was discovered that FFmpeg incorrectly handled certain crafted MPEG system headers. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-75142) It was discovered that FFmpeg incorrectly handled certain crafted network input in the librist protocol handler. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-75143) It was discovered that FFmpeg incorrectly handled certain crafted Dirac data units in the VC2 HQ RTP packetizer. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-75144) It was discovered that FFmpeg incorrectly handled certain crafted DASH manifests. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 24.04 LTS. (CVE-2026-75146)