Time-of-check Time-of-use (TOCTOU) Race Condition in Intel Server Board D50DNP and Intel Server Board M50FCP UEFI - CVE-2025-20082
Published: May 14, 2025
Vulnerability identifier: #VU109163
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-20082
CWE-ID: CWE-367
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to a time-of-check, time-of-use (TOCTOU) race condition in the UEFI firmware SmiVariable driver. A local administrator can gain elevated privileges on the target system.
Affected software
Intel Server Board D50DNP
Intel Server Board M50FCP UEFI
Intel Server Board M50FCP UEFI
How to mitigate CVE-2025-20082
Install updates from vendor's website.
Intel Server Board D50DNP - update to R01.02.0003
Intel Server Board M50FCP UEFI - update to R01.02.0003
Intel Server Board M50FCP UEFI - update to R01.02.0003