---
title: "CVE-2026-107406: Citrix NetScaler ADC - Remote Code Execution & Denial of Service"
description: "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."
url: https://panop.io/threat-heartbeat/CVE-2026-107406/
---

# 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 ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-107406)

## 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](https://cwe.mitre.org/data/definitions/119.html)

## 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

- [https://nvd.nist.gov/vuln/detail/CVE-2026-107406](https://nvd.nist.gov/vuln/detail/CVE-2026-107406)
- [https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697191](https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697191)
- [https://community.citrix.com/techzone-blogs/110\_security-updates/protecting-customers-immediate-guidance-for-cve-2026-107406-in-netscaler-adc-and-netscaler-gateway-r1631/](https://community.citrix.com/techzone-blogs/110_security-updates/protecting-customers-immediate-guidance-for-cve-2026-107406-in-netscaler-adc-and-netscaler-gateway-r1631/)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)