🟠 《高危安全漏洞：CVE-2026-66039》

CVSS 评分: 高危（8.7）　　状态: Received　　发布时间: 2026-07-24

漏洞描述

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.

🔍 技术细节

字段 值
CVE ID CVE-2026-66039
CVSS 评分 8.7 🟠
严重程度 高危
CVSS 向量 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE 分类 CWE-122,CWE-190
发布时间 2026-07-24
最后更新 2026-07-24
状态 Received
数据来源 disclosure@vulncheck.com

🔗 参考链接