Segmentation violation in GPAC MP4Box crashes on crafted MP4 files
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
GPAC MP4Box v2.5-DEV-rev1672-gc9a31d0e1-master is affected. A memory bounds flaw (CWE-119) in the dump_isom_saps function causes a segmentation violation. A local attacker can cause a denial of service by getting a user to open a crafted MP4 file.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
A segmentation violation in the dump_isom_saps function (/mp4box/filedump.c) of GPAC MP4Box v2.5-DEV-rev1672-gc9a31d0e1-masterallows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for GPAC MP4Box.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-19 Threatist record created from CVE-2025-55667
- 2026-10-20 Alias added: GHSA-j9x6-f485-2g6f
References
Sources
- CVE-2025-55667 · CVE Program
- CVE-2025-55667 · NVD
- FIRST EPSS
- GHSA-j9x6-f485-2g6f · GitHub Advisory Database · CC BY 4.0
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