Time-of-check Time-of-use (TOCTOU) Race Condition in Apex One - CVE-2026-45208
Published: May 22, 2026
Vulnerability identifier: #VU132113
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-45208
CWE-ID: CWE-367
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges.
The vulnerability exists due to time-of-check time-of-use race condition in the Apex One/SEP agent when handling file or resource access. A local user can win the race condition to escalate privileges.
Exploitation requires the ability to execute low-privileged code on the target system.
Affected software
Apex One
How to mitigate CVE-2026-45208
Install security update from vendor's website.
Apex One - addressed in versions SP1 CP 18012, SP1 17079