CVE-2026-107406 Citrix NetScaler ADC - Remote Code Execution & Denial of Service

Citrix NetScaler ADC and NetScaler Gateway in specified versions contain a memory overflow vulnerability caused by improper handling in SAML SP or IdP configurations, letting attackers cause remote code execution or denial of service, exploit requires SAML SP or IdP configuration.

CVSS base score 9.5 /10
Critical
CISA KEV
Not listed
Public exploit
Proof of concept available
EPSS
0.47% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution, Denial Of Service
CVSS vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/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
Published
8 October 2026
Updated
15 October 2026
Weakness
CWE-119

Vendor fix

Upgrade to versions later than 14.1-73.41, 14.1-73.41 FIPS, 13.1-64.28, and 13.1-37.282 or latest available versions.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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