CVE-2026-40393

Published: Apr 12, 2026 Last Modified: Apr 16, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,1
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

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 (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 4 Days)

787

Out-of-bounds Write

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Assembly, C, C++, Memory-Unsafe
Technologies: ICS/OT
Likelihood of Exploit: High
View CWE Details
Application

Mesa by Mesa3D

Product Information
Vendor Mesa3D
Product Mesa
Version 26.0.0
cpe:2.3:a:mesa3d:mesa:26.0.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Mesa by Mesa3D

Product Information
Vendor Mesa3D
Product Mesa
Version Range Affected
To 25.3.6 (exclusive)
cpe:2.3:a:mesa3d:mesa:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3…
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39866
https://lists.freedesktop.org/archives/mesa-dev/2026-Februa…
https://lists.freedesktop.org/archives/mesa-dev/2026-February/226597.html