Review reviewHigh

CVE-2026-8452

NetScaler ADC, Gateway, netscaler application delivery controller

Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server

CVSS: 8.8
EPSS: 0.49%
CISA KEV: Not listed
Published: 2026.06.30

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.49%

Technical severityCVSS 8.8

Vulnerability overview

Affected product and versions

Product: NetScaler ADC, Gateway, netscaler application delivery controller
Affected versions: 14.1, 13.1, 14.1 FIPS, 13.1 FIPS and NDcPP, < 13.1-37.272, >= 13.1 < 13.1-63.18, >= 14.1 < 14.1-72.61, 14.1-66.68
Fixed versions: 13.1-37.272, 13.1-63.18, 14.1-72.61

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that NetScaler ADC, Gateway, netscaler application delivery controller and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:L/SI:L/SA:L/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
CWE: CWE-119