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CVE-2026-65773

—
CVSS 3.1
7.8 high
EPSS
<1%p15
Published
()
Modified
Description

Improper access control in Windows Kernel allows an authorized attacker to elevate privileges locally.

Vendors
microsoft
Products
windows 10 1809, windows 10 21h2, windows 10 22h2, windows 11 23h2, windows 11 24h2, windows 11 25h2, windows 11 26h1, windows server 2019, windows server 2022, windows server 2025
Weakness
CWE-284
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD CVE.org GitHub PoCs EPSS (0.2%)

In the news

ZDI-26-539: (Pwn2Own) Microsoft Windows ipt.sys Incorrect Permission Assignment Local Privilege Escalation Vulnerability

ZDI advisory discloses Windows ipt.sys local privilege escalation (CVE-2026-65773, CVSS 7.8) demonstrated at Pwn2Own.

ZDI advisory ZDI-26-539 describes an incorrect permission assignment flaw in Microsoft Windows ipt.sys, tracked as CVE-2026-65773 with a CVSS score of 7.8. A local attacker who can already execute low-privileged code can exploit it to escalate privileges. The vulnerability was demonstrated at Pwn2Own.

ZDI Published Advisories · Aug 11, 2026AdvisoryCVE-2026-657731