CVE-2026-66039
CVE-2026-66039: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh8.8
High [CVE-2026-66039] Arbitrary code execution via crafted CAF file
CVE-2026-66039Source published Source updated
FFmpeg through 8.1.2, fixed in commit aafb5c6, contains a signed integer overflow vulnerability in the MACE6 audio decoder that allows attackers to corrupt heap memory by supplying a crafted CAF file with a malicious bytes_per_packet value. Attackers can craft a CAF file with oversized bytes_per_packet and frames_per_packet values in the desc chunk to trigger an integer overflow in mace_decode_frame() during output sample count computation, resulting in an undersized buffer allocation and heap out-of-bounds write that could enable code execution. A flaw was found in FFmpeg. This vulnerability could allow an attacker to execute arbitrary code on the affected system. Red Hat severity: Important — CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Weakness: CWE-787. Affected Red Hat…
- Affected products in this advisory
- Red Hat Enterprise Linux AI 3.3 for RHEL 9
- Red Hat Enterprise Linux AI 3.4 for RHEL 9
- Red Hat Enterprise Linux AI 3.5 for RHEL 9
- Red Hat Enterprise Linux AI (RHEL AI) 3
1 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- 8.1.2
- ffmpeg-0:6.1.6-7.el9ai
- RHSA-2026:60336
- RHSA-2026:60334
1 more entries in the full advisory.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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