Race condition in Microsoft Windows - CVE-2026-58598
Published: July 17, 2026
Vulnerability identifier: #VU138290
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-58598
CWE-ID: CWE-362
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 a race condition in Windows Backup Engine when accessing shared resources concurrently. A local user can trigger concurrent execution to escalate privileges.
Affected software
Microsoft Windows
How to mitigate CVE-2026-58598
Install security update from vendor's website.
Microsoft Windows - addressed in versions 10 21H2 10.0.19044.7548, 10 22H2 10.0.19045.7548, 11 24H2 10.0.26100.8875, 11 26H1 10.0.28000.2525