Description
Improper neutralization of argument delimiters in a command ('argument injection') in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 – < 10.0.19044.7807 | 10.0.19044.7807 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – < 10.0.19045.7807 | 10.0.19045.7807 |
| Microsoft | Windows 11 version 23H2 | 10.0.22631.0 – < 10.0.22631.7652 | 10.0.22631.7652 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – < 10.0.26100.9711 | 10.0.26100.9711 |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 – < 10.0.26200.9711 | 10.0.26200.9711 |
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0 – < 10.0.28000.3231 | 10.0.28000.3231 |
| Microsoft | Windows 11 Version 26H2 | 10.0.26300.0 – < 10.0.26300.9711 | 10.0.26300.9711 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – < 10.0.20348.5761 | 10.0.20348.5761 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – < 10.0.26100.33650 | 10.0.26100.33650 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – < 10.0.26100.33650 | 10.0.26100.33650 |
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.
GitHub 3 repositories
-
G4sp4rCS/CVE-2026-97798-exploit ★ 78 · Oct 27, 2026
CVE-2026-97798 Windows Error Reporting - Command Injection TO SYSTEM
-
j0wii/CVE-2026-97798_LPE_Windows ★ 10 · Oct 29, 2026
CVE-2026-97798 PoC — WER Time Travel Debugging argument injection to SYSTEM (Windows 11 LPE), with an adaptive faultrep.dll resolver.
-
ashrafzaryouh/CVE-2026-97798 ★ 0 · Nov 4, 2026
CVE-2026-97798
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- WID-SEC-2026-3892 Microsoft Windows und Windows Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 8, 2026
- MSRC-CVE-2026-97798 Windows Error Reporting Service Elevation of Privilege Vulnerability Microsoft Security Response Center · Oct 30, 2026
References
- Windows Error Reporting Service Elevation of Privilege Vulnerability vendor-advisory patch