CVE-2026-66039

Katalog CVE

CVSS 7.8 · High EPSS 0,44%

Kerentanan Heap-based Buffer Overflow pada ffmpeg. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

24 Juli 2026

Terakhir diubah

7 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-122: Heap-based Buffer Overflow
CWE-190: Integer Overflow or Wraparound

EPSS (30 hari)

0,44% peluang dieksploitasi; lebih tinggi dari 36,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/aafb5c655edc76a753275c383ebb139feb032718 patch
• https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23631 issue tracking · patch
• https://www.vulncheck.com/advisories/ffmpeg-mace6-audio-decoder-heap-out-of-bounds-write-via-caf-file advisory pihak ketiga