CVE-2026-29022
mackron / dr_libs dr_wav.h Heap Buffer Overflow via WAV File
- State
- Published
- Severity
- 6.8 Medium
- Published
- Mar 3, 2026
- Updated
- Jul 28, 2026
- Reserved
- Mar 3, 2026
Description
dr_libs dr_wav.h version 0.14.4 and earlier (fixed in commit 8a7258c) contain a heap buffer overflow vulnerability in the drwav__read_smpl_to_metadata_obj() function of dr_wav.h that allows memory corruption via crafted WAV files. Attackers can exploit a mismatch between sampleLoopCount validation in pass 1 and unconditional processing in pass 2 to overflow heap allocations with 36 bytes of attacker-controlled data through any drwav_init_*_with_metadata() call on untrusted input.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.3 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H | VulnCheck |
Weaknesses
- CWE-122 Heap-based Buffer Overflow
Affected Products
| Product | Versions |
|---|---|
dr_libs dr_wav.hmackron |
|
References
- https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2026-001-dr-libs-heap-overflow.mdtechnical-descriptionexploit
- https://github.com/mackron/dr_libs/issues/296issue-tracking
- https://github.com/mackron/dr_libs/commit/8a7258cc66b49387ad58cc5b81568982a3560d49patch
- https://www.vulncheck.com/advisories/mackron-dr-libs-heap-buffer-overflow-via-wav-filethird-party-advisory
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