HIGH

CVE-2026-91041

CVSS v3

7.8

HIGH

EPSS Score

—

exploit probability

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-91041 yet.

Full record on NVD

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.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2026-10-20
Last Modified: 2026-10-20

Frequently asked questions

What is CVE-2026-91041?

Is CVE-2026-91041 actively exploited?

Active exploitation of CVE-2026-91041 has not been confirmed.

What is the CVSS score for CVE-2026-91041?

CVE-2026-91041 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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