CVE-2025-27473
HIGH EPSS 75.7%
Published Apr 8, 20251y ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
Published Apr 8, 2025 1y ago
Last Modified Jun 17, 2026 1w ago
Description
Uncontrolled resource consumption in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
75.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-400 Uncontrolled Resource Consumption Resource Mgmt
Affected Products 21
| Vendor | Product | Version | Range |
|---|---|---|---|
| microsoft | windows_10_1507 | * | <10.0.10240.20978 |
| microsoft | windows_10_1507 | * | <10.0.10240.20978 |
| microsoft | windows_10_1607 | * | <10.0.14393.7969 |
| microsoft | windows_10_1607 | * | <10.0.14393.7969 |
| microsoft | windows_10_1809 | * | <10.0.17763.7136 |
| microsoft | windows_10_1809 | * | <10.0.17763.7136 |
| microsoft | windows_10_21h2 | * | <10.0.19044.5737 |
| microsoft | windows_10_22h2 | * | <10.0.19045.5737 |
| microsoft | windows_11_22h2 | * | <10.0.22621.5189 |
| microsoft | windows_11_23h2 | * | <10.0.22631.5189 |
| microsoft | windows_11_24h2 | * | <10.0.26100.3775 |
| microsoft | windows_server_2008 | * | any |
| microsoft | windows_server_2008 | * | any |
| microsoft | windows_server_2008 | r2 | any |
| microsoft | windows_server_2012 | * | any |
| microsoft | windows_server_2012 | r2 | any |
| microsoft | windows_server_2016 | * | <10.0.14393.7969 |
| microsoft | windows_server_2019 | * | <10.0.17763.7136 |
| microsoft | windows_server_2022 | * | <10.0.20348.3453 |
| microsoft | windows_server_2022_23h2 | * | <10.0.25398.1551 |
| microsoft | windows_server_2025 | * | <10.0.26100.3775 |
References 1
- msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27473
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.