high · CVSS v3 7.8

CVE-2026-91041

Mounting an attacker-controlled FAT image with fault tolerance enabled causes an out-of-bounds heap write during log rep…

Description

Mounting an attacker-controlled FAT image with fault tolerance enabled causes an out-of-bounds heap write during log replay. The write is attacker-positioned and attacker-valued, and on a common embedded memory layout it reaches the FX_MEDIA driver callback, giving control of the instruction pointer.

Scores

Severity
high
CVSS v2
7.2
CVSS v3
7.8
CVSS v4
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EPSS
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