CVE Database›CVE-2023-54104

CVE-2023-54104

kernel: Linux kernel: Privilege escalation via out-of-bounds access in NAND flash driver

Loading…

Severity

Important

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · December 24, 2025

Updated · August 20, 2026

Description

A flaw was found in the Linux kernel's mtd: rawnand: fsl_upm driver. A local attacker with low privileges could exploit an off-by-one error in the fun_exec_op() function, leading to out-of-bounds memory accesses. This vulnerability could result in privilege escalation, allowing the attacker to gain elevated system access, or cause information disclosure or a denial of service.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-805 · Buffer Access with Incorrect Length Value