8.8
HIGH CVSS 4.0
CVE-2026-8451
Insufficient input validation leading to memory overread
Description

Insufficient input validation in NetScaler ADC and NetScaler Gateway leading to memory overread if NetScaler ADC or NetScaler Gateway is configured as a SAML IDP

INFO

Published Date :

June 30, 2026, 12:33 p.m.

Last Modified :

June 30, 2026, 12:55 p.m.

Remotely Exploit :

Yes !

Source :

NetScaler
Affected Products

The following products are affected by CVE-2026-8451 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5
Solution
Update NetScaler ADC and Gateway to fix memory overread vulnerability.
  • Apply vendor-provided updates for NetScaler ADC.
  • Apply vendor-provided updates for NetScaler Gateway.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-8451 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.