CVE-2026-23666CWE-755

.NET Framework Denial of Service Vulnerability

High · published April 14, 2026

CVSS v3.1

7.5

EPSS

1%

Percentile

70.8

In the wild

Unconfirmed

What it is

Improper input validation in .NET Framework allows an unauthorized attacker to deny service over a network.

The record

Technical detail

CVSS v3.1: 7.5 · HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
CVSS v4.0: Not supplied
EPSS: 0.01330 · 70.8th percentile
Weakness: CWE-755 · Improper Handling of Exceptional Conditions
Published: 2026-04-14T16:57Z

EPSS history

Timeline

14 APR 16:57Z
.NET Framework Denial of Service Vulnerability
cvelistv5