CVE-2026-53022

critical

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-wmi-sysman: bound enumeration string aggregation populate_enum_data() aggregates firmware-provided value-modifier and possible-value strings into fixed 512-byte struct members. The current code bounds each individual source string but then appends every string and separator with raw strcat() and no remaining-space check. Switch the aggregation loops to a bounded append helper and reject enumeration packages whose combined strings do not fit in the destination buffers. [ij: add include]

References

https://git.kernel.org/stable/c/c5683ca4949a514fbe656c6d0d08c4c126e21db9

https://git.kernel.org/stable/c/ba0843c1955864401295f7ba3b420afe19f2266d

https://git.kernel.org/stable/c/90b118d264845f7aaf539ac49f7c75f1f29590e2

https://git.kernel.org/stable/c/7b3dc1f764bf24eb99474a5de8173b0b43a8b071

https://git.kernel.org/stable/c/75c738d4f27fa18a2a033de153bd40302bde6a66

https://git.kernel.org/stable/c/5a04f9a36930792f6d64e28d43609e158d09b665

https://git.kernel.org/stable/c/3c34471c26abc52a37f5ad90949e2e4b8027eb14

Details

Source: Mitre, NVD

Published: 2026-06-24

Updated: 2026-06-24

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00172