PT-2026-7337 · Microsoft · Windows Http.Sys+1

Matthew Cox · Published 2026-02-10 · Updated 2026-02-11 · CVE-2026-21232

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Description An issue exists in Windows HTTP.sys where an untrusted pointer dereference can allow a locally authenticated attacker to gain elevated privileges. The issue allows attackers to affect the system.

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

Untrusted Pointer Dereference

Weakness Enumeration

CWE-822

Related Identifiers

BDU:2026-01801

CVE-2026-21232

Affected Products

Windows

Windows Http.Sys

References · 7

• https://bdu.fstec.ru/vul/2026-01801 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-21232 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-21232 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21232 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-21232 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21232 · Security Note
• https://t.me/cveNotify/151778 · Telegram Post