CVE-2026-40401CWE-476

Windows TCP/IP Denial of Service Vulnerability

High · published May 12, 2026

CVSS v3.1

7.1

EPSS

0%

Percentile

35.4

In the wild

Unconfirmed

What it is

Windows TCP/IP Denial of Service Vulnerability

The record

Technical detail

CVSS v3.1: 7.1 · HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C
CVSS v4.0: Not supplied
EPSS: 0.00422 · 35.4th percentile
Weakness: CWE-476 · NULL Pointer Dereference
Published: 2026-05-12T16:59Z

EPSS history

Timeline

12 MAY 16:59Z
Windows TCP/IP Denial of Service Vulnerability
cvelistv5