PT-2025-15532 · Microsoft · Windows Http.Sys+1

K0Shl · Published 2025-04-08 · Updated 2025-04-09 · CVE-2025-27473

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions: Windows HTTP.sys (affected versions not specified)

Description: The issue is related to uncontrolled resource consumption in Windows HTTP.sys, which allows an unauthorized attacker to deny service over a network. This is a denial-of-service vulnerability that enables attackers to affect the system.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

BDU:2025-04102

CVE-2025-27473

Affected Products

Windows

Windows Http.Sys

References · 8

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27473 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/719829 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-27473 · Security Note
• https://bdu.fstec.ru/vul/2025-04102 · Security Note
• https://osv.dev/vulnerability/CVE-2025-27473 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-27473 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-27473 · Security Note
• https://twitter.com/CVEnew/status/1909923460450775367 · Twitter Post