9.8

CVE-2026-40393

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mesa3d ≫ Mesa Version < 25.3.6
Mesa3d ≫ Mesa Version 26.0.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.43% 0.345
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
MITRE 8.1 2.2 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39866
Issue Tracking
https://lists.freedesktop.org/archives/mesa-dev/2026-February/226597.html
Mailing List
Issue Tracking
https://lists.debian.org/debian-lts-announce/2026/07/msg00021.html