VDB
CVE-2026-40393
CVE-2026-40393
PUBLISHED
CVSS 8.100000381469727 HIGH
In Mesa before 25.3.6 and 26 before 26.0.1, out-of-bounds memory access can occur in WebGPU because the amount of to-be-allocated data depends on an untrusted party, and is then used for alloca.
EPSS 0.43% · 36.6th percentile
Risk Scores
CVSS 3.1
8.100000381469727
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.43%
36.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| mesa3d | Mesa | 26.0.0, 0 |
| mesa3d | mesa | 0, 26.0.0 |
Timeline
- Apr 12, 2026 CVE Published
- Apr 12, 2026 PoC Published
- Apr 12, 2026 PoC Published
- Apr 12, 2026 PoC Published
- Apr 12, 2026 PoC Published
- Apr 13, 2026 EPSS Score
- Apr 13, 2026 Security Advisory
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score