CVE-2025-21343
published 2025-01-14CVE-2025-21343: Windows Web Threat Defense User Service Information Disclosure Vulnerability
PriorityP341high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
1.30%
66.7th percentile
Windows Web Threat Defense User Service Information Disclosure Vulnerability
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_11_22h2 | < 10.0.22621.4751 | 10.0.22621.4751 |
| microsoft | windows_11_23h2 | < 10.0.22631.4751 | 10.0.22631.4751 |
| microsoft | windows_11_24h2 | < 10.0.26100.2894 | 10.0.26100.2894 |
| microsoft | windows_11_version_22h2 | >= 10.0.22621.0 < 10.0.22621.4751 | 10.0.22621.4751 |
| microsoft | windows_11_version_22h3 | >= 10.0.22631.0 < 10.0.22631.4751 | 10.0.22631.4751 |
| microsoft | windows_11_version_23h2 | >= 10.0.22631.0 < 10.0.22631.4751 | 10.0.22631.4751 |
| microsoft | windows_11_version_24h2 | >= 10.0.26100.0 < 10.0.26100.2894 | 10.0.26100.2894 |
| msrc | windows_11_version_22h2_for_arm64-based_systems | — | — |
| msrc | windows_11_version_22h2_for_x64-based_systems | — | — |
| msrc | windows_11_version_23h2_for_arm64-based_systems | — | — |
| msrc | windows_11_version_23h2_for_x64-based_systems | — | — |
| msrc | windows_11_version_24h2_for_arm64-based_systems | — | — |
| msrc | windows_11_version_24h2_for_x64-based_systems | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
vendor_msrc7.5HIGH
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GHSA
GHSA-rrm6-257m-2hgw: Windows Web Threat Defense User Service Information Disclosure Vulnerability
ghsa_unreviewed·2025-01-14
CVE-2025-21343 [HIGH] CWE-269 GHSA-rrm6-257m-2hgw: Windows Web Threat Defense User Service Information Disclosure Vulnerability
Windows Web Threat Defense User Service Information Disclosure Vulnerability
Microsoft
Windows Web Threat Defense User Service Information Disclosure Vulnerability
vendor_msrc·2025-01-14·CVSS 7.5
CVE-2025-21343 [HIGH] CWE-269 Windows Web Threat Defense User Service Information Disclosure Vulnerability
Windows Web Threat Defense User Service Information Disclosure Vulnerability
FAQ: What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is sensitive information.
FAQ: How could an attacker exploit this vulnerability?
An attacker who successfully exploited this vulnerability could capture screenshots of another user’s session, crossing the user-session boundary.
Windows Web Threat Defense User Service: Windows Web Threat Defense User Service
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Information Disclosure
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely
Reference: https://catalog.update.microsoft.com
No detection rules found.
No public exploits indexed.
2025-01-14
Published