CVE-2026-111131
libxmp through 4.7.4 Stack Out-of-Bounds Read via P61A Depacker
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 15, 2026
- Updated
- Oct 15, 2026
- Reserved
- Oct 15, 2026
Description
libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
libxmplibxmp |
|
References
- https://hackmd.io/@haind-pwn/libxmp-p61a-sample-backreference-oob-readtechnical-description
- https://github.com/libxmp/libxmp/blob/5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da/src/loaders/prowizard/p61a.c#L110-L116technical-description
- https://github.com/libxmp/libxmp/blob/5d4f6aa2c7dcdf8e9cd8129fe579d45b36a302da/src/loaders/prowizard/p61a.c#L638-L641technical-description
- https://github.com/libxmp/libxmpproduct
- VulnCheck Advisory: libxmp through 4.7.4 Stack Out-of-Bounds Read via P61A Depackerthird-party-advisory
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