Integer underflow in Libxmp
Priority MEDIUM 58CWE-191Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Libxmp through 4.6.2 has a stack-based buffer overflow in depack_pha in loaders/prowizard/pha.c via a malformed Pha format tracker module in a .mod file.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00305 23rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2025-47256
- 2026-10-03 Alias added: GHSA-vg32-cm75-rjr5
References
More Libxmp vulnerabilities
- TI-2026-74915 Off-by-one stack out-of-bounds read in libxmp P61A depacker CVSS 4.0MEDIUM 6.9
Sources
- CVE-2025-47256 · CVE Program
- CVE-2025-47256 · NVD
- FIRST EPSS
- GHSA-vg32-cm75-rjr5 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-47256 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences