AISLE uncovers six critical FFmpeg security vulnerabilities including 19-year-old bug
Security firm AISLE has identified six high and critical severity vulnerabilities in the FFmpeg codebase, including a 19-year-old stack buffer overflow. The findings affect various protocol handlers such as RIST, HEVC, and DASH, and the company has provided links to the corresponding patches.
Key Takeaways
- CVE-2026-75143 received a 9.8 critical score for a heap buffer overflow in the RIST protocol reader.
- A 19-year-old stack buffer overflow, CVE-2026-75142, was discovered in the MPEG-PS muxer code dating back to 2007.
- Vulnerabilities were identified in less-traveled handlers including VC-2/Dirac, AV1 RTP packetizing, and HEVC muxing.
- AISLE reported that its AI-driven analysis found 28 valid security bugs in FFmpeg within a single month.
Why It Matters
These vulnerabilities expose the underlying fragility of the global streaming supply chain, as FFmpeg serves as the primary processing engine for major platforms. The discovery of a two-decade-old bug suggests that traditional manual audits and legacy scanning tools are failing to secure the industry's most critical open-source dependencies. For the broader ecosystem, this highlights a growing technical debt where specialized protocol handlers remain under-scrutinized despite their role in modern delivery formats like DASH and HEVC. Organizations should monitor the adoption of AI-augmented code analysis by both defenders and threat actors, as the speed of vulnerability discovery in legacy codebases is likely to accelerate.
Read full article at aisle.com
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