Description
Windows Backup Service Elevation of Privilege Vulnerability
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – < 10.0.19045.2486 | 10.0.19045.2486 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – < 10.0.22621.1105 | 10.0.22621.1105 |
| Microsoft | Windows 10 Version 21H2 | 10.0.19043.0 – < 10.0.19044.2486 | 10.0.19044.2486 |
| Microsoft | Windows 11 version 21H2 | 10.0.0 – < 10.0.22000.1455 | 10.0.22000.1455 |
| Microsoft | Windows 10 Version 20H2 | 10.0.0 – < 10.0.19042.2486 | 10.0.19042.2486 |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 – < 10.0.17763.3887, 10.0.0 – < 10.0.17763.3887 | 10.0.17763.3887 |
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 – < 10.0.14393.5648 | 10.0.14393.5648 |
| Microsoft | Windows 7 Service Pack 1 | 6.1.0 – < 6.1.7601.26321 | 6.1.7601.26321 |
| Microsoft | Windows 10 Version 1507 | 10.0.10240.0 – < 10.0.10240.19685 | 10.0.10240.19685 |
| Microsoft | Windows 7 | 6.1.0 – < 6.1.7601.26321 | 6.1.7601.26321 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Windows 11 10.0.22000 - Backup service Privilege Escalation EDB-51203 · local · Apr 3, 2023
GitHub 3 repositories
-
Wh04m1001/CVE-2023-21752 ★ 326 · Jan 10, 2023
-
SamDHarrison/Compiled-CVE-2023-21752 ★ 0 · Oct 25, 2026
Compiled version of Wh04m1001's exploit for iwr/wget delivery to VM.
-
yosef0x01/CVE-2023-21752 ★ 0 · Aug 10, 2023
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- WID-SEC-2023-0055 Microsoft Windows und Microsoft Windows Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 14, 2025
- MSRC-CVE-2023-21752 Windows Backup Service Elevation of Privilege Vulnerability Microsoft Security Response Center · Jan 10, 2023
References
- Windows Backup Service Elevation of Privilege Vulnerability vendor-advisory