High MSRC-CVE-2026-58598 1 CVE

Windows Backup Service Elevation of Privilege Vulnerability

Published Jul 16, 2026 · Updated Jul 16, 2026

Vendor: Microsoft

Summary

Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

Security updates
10.0.19044.7548 — https://support.microsoft.com/help/5099539
10.0.26200.8875 — https://support.microsoft.com/help/5101650
10.0.28000.2525 — https://support.microsoft.com/help/5101649

Vulnerabilities 1

High 7.0

CVE-2026-58598

Windows Backup Service Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Backup Engine allows an authorized attacker to elevate privileges locally.

Microsoft Windows 10 Version 21H2 Windows 10 Version 22H2 Windows 11 Version 24H2 Windows

Jul 16, 2026

Revision history

2026-07-16 #1
Information published.

References

CVE-2026-58598 Windows Backup Service Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58598
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss