CVE-2023-54065
kernel: Linux kernel: Privilege escalation in Realtek MDIO driver due to out-of-bounds write
Severity
ImportantRed Hat Product Security
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 realtek-mdio driver. The probe function incorrectly allocates memory, leading to an out-of-bounds write. A local attacker could exploit this memory corruption to cause a denial of service or potentially escalate privileges on the system.
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 · 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-787 · Out-of-bounds Write