NetScaler ADC and Gateway
CVE-2026-8451: Insufficient input validation leading to memory overread
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
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 4.0 8.8
EPSS0.50%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| ADC 14.1 | 72.61 or later |
| ADC 13.1 | 63.18 or later |
| ADC 14.1 FIPs | 72.61 or later |
| ADC 13.1 FIPS and NDcPP | 37.272 or later |
| Gateway 14.1 | 72.61 or later |
| Gateway 13.1 | 63.18 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.