Heap buffer overflow in libaribb24 parser lets crafted streams crash FFmpeg
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
libaribb24 (aribb24) through 1.0.3 contains a heap-based buffer overflow in src/parser.c that allows attackers to corrupt heap memory via an oversized caption data unit. An attacker who supplies a crafted caption PES packet in a media file or broadcast stream can crash FFmpeg or VLC and possibly corrupt further memory. Exploitation requires a user to open the crafted file or stream. CVSS 4.0 scores it 6.9 (Medium).
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
libaribb24 (aribb24) through 1.0.3 contains a heap-based buffer overflow vulnerability in src/parser.c that allows attackers to corrupt heap memory via an oversized caption data unit. Attackers can supply a crafted caption PES packet in a media file or broadcast stream, processed through arib_parse_pes(), to crash FFmpeg or VLC and possibly corrupt further memory.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for libaribb24 (aribb24).
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-19 Threatist record created from CVE-2026-112280
- 2026-10-19 Alias added: GHSA-pgf4-9h53-rfcj
References
More nkoriyama vulnerabilities
- TI-2026-76481 Stack buffer overflow in libaribb24 decoder_handle_csi CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-112280 · CVE Program
- CVE-2026-112280 · NVD
- FIRST EPSS
- GHSA-pgf4-9h53-rfcj · GitHub Advisory Database · CC BY 4.0
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