CVE-2026-8451

high · 8.8

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

8.8

CVSS

15.7%

EPSS (exploit prob.)

97th

EPSS percentile

2026-06-30

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-125

Affected products

Vendor	Product	Affected versions
citrix	netscaler_application_delivery_controller	< 13.1-37.272
citrix	netscaler_application_delivery_controller	< 13.1-37.272
citrix	netscaler_application_delivery_controller	>= 13.1, < 13.1-63.18
citrix	netscaler_application_delivery_controller	>= 14.1, < 14.1-72.61
citrix	netscaler_application_delivery_controller	14.1-66.68
citrix	netscaler_gateway	>= 13.1, < 13.1-63.18
citrix	netscaler_gateway	>= 14.1, < 14.1-72.61

Check a specific version with /api/v1/cve/match.

References

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-8451