CVE-2026-75147

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{"acknowledgement": "Upstream acknowledges Joshua Rogers (AISLE Research) as the original reporter.", "bugzilla": {"description": "ffmpeg: FFmpeg: Information disclosure or denial of service via crafted AV1 RTP packet", "id": "2519763", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519763"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["FFmpeg before commit 983dae9 contains an out-of-bounds read in the AV1 RTP packetizer (libavformat/rtpenc_av1.c). The keyframe detection loop that searches for a sequence header OBU advanced its pointer and remaining-size counter by the encoded header length plus the OBU payload size without first bounding the OBU size against the remaining data. A crafted OBU size causes the remaining-size counter to wrap to a positive value, causing the next loop iteration to dereference a pointer beyond the end of the packet buffer. A crafted AV1 input packet muxed to RTP triggers the out-of-bounds read.", "A flaw was found in FFmpeg's AV1 Real-time Transport Protocol (RTP) packetizer. A local attacker could entice a user to process a crafted AV1 input packet. This crafted packet could cause an out-of-bounds read, potentially leading to information disclosure or a denial of service (DoS) condition."], "mitigation": {"lang": "en:us", "value": "No mitigation is currently available for this flaw."}, "name": "CVE-2026-75147", "package_state": [{"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Fix deferred", "package_name": "ffmpeg", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Fix deferred", "package_name": "rhoai/odh-vllm-gaudi-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}], "public_date": "2026-08-19T16:29:03Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-75147\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-75147\nhttps://code.ffmpeg.org/FFmpeg/FFmpeg/commit/983dae9c19f46c87d597598c0fd2f2fcee0ad2f8\nhttps://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24096\nhttps://www.vulncheck.com/advisories/ffmpeg-out-of-bounds-read-in-av1-rtp-packetizer-via-rtpenc-av1-c"], "statement": "The ffmpeg package is not shipped in base Red Hat Enterprise Linux. It is available through EPEL, Red Hat Enterprise Linux AI, and as a bundled dependency in Red Hat OpenShift AI container images. The vulnerable code resides in the AV1 RTP packetizer (libavformat/rtpenc_av1.c), which is compiled and shipped in all FFmpeg builds across these products.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,983dae9c19f46c87d597598c0fd2f2fcee0ad2f8)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "FFmpeg", "source": "cna", "vendor": "FFmpeg"}, "product": "ffmpeg", "vendor": "ffmpeg"}], "created": "2026-08-19T18:30:03.415109+00:00", "updated": "2026-08-20T14:00:04.395316+00:00", "vendors": ["ffmpeg", "ffmpeg$PRODUCT$ffmpeg"]}