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CVE-2026-107406

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service

9.5 CriticalPublic exploit

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.

NetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:

 

  • For the following versions: Applicable only when configured as a SAML IdP:
  • NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive
  • NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive
  • NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive
  • NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive

 

For the following versions: Applicable only when configured as a SAML SP or SAML IdP:

  • NetScaler ADC and NetScaler Gateway before 14.1-73.37 
  • NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS 
  • NetScaler ADC and NetScaler Gateway before 13.1-64.23
  • NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.87%Up 1.5 points since Oct 9, 2026
90%50%10%1%

What each source reports

CVE List Score used 9.5

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.

NetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:

 

  • For the following versions: Applicable only when configured as a SAML IdP:
  • NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive
  • NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive
  • NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive
  • NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive

 

For the following versions: Applicable only when configured as a SAML SP or SAML IdP:

  • NetScaler ADC and NetScaler Gateway before 14.1-73.37 
  • NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS 
  • NetScaler ADC and NetScaler Gateway before 13.1-64.23
  • NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279
Record
CVE-2026-107406
CVSS 4.0
9.5 CriticalCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L
Weakness
CWE-119
Updated
2026-11-02
EUVDEUVD-2026-95315 9.5

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.

NetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:

 

  • For the following versions: Applicable only when configured as a SAML IdP:
  • NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive
  • NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive
  • NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive
  • NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive

 

For the following versions: Applicable only when configured as a SAML SP or SAML IdP:

  • NetScaler ADC and NetScaler Gateway before 14.1-73.37 
  • NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS 
  • NetScaler ADC and NetScaler Gateway before 13.1-64.23
  • NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279
Record
EUVD-2026-95315
CVSS 4.0
9.5 CriticalCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-x62m-6223-4vq2 9.5

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability...

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.

NetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:

 

  • For the following versions: Applicable only when configured as a SAML IdP:
  • NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive
  • NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive
  • NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive
  • NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive

 

For the following versions: Applicable only when configured as a SAML SP or SAML IdP:

  • NetScaler ADC and NetScaler Gateway before 14.1-73.37 
  • NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS 
  • NetScaler ADC and NetScaler Gateway before 13.1-64.23
  • NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279
Record
GHSA-x62m-6223-4vq2
CVSS 4.0
9.5 CriticalCVSS: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
Weakness
CWE-119
Updated
2026-11-02
NVD 9.5

Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.

NetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:

 

  • For the following versions: Applicable only when configured as a SAML IdP:
  • NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive
  • NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive
  • NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive
  • NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive

 

For the following versions: Applicable only when configured as a SAML SP or SAML IdP:

  • NetScaler ADC and NetScaler Gateway before 14.1-73.37 
  • NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS 
  • NetScaler ADC and NetScaler Gateway before 13.1-64.23
  • NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279
Record
CVE-2026-107406
CVSS 4.0
9.5 CriticalCVSS: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
Weakness
CWE-119
Updated
2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubApexBreach/CVE-2026-107406-Poc2026-10-09
PoC in GitHubtechupdate24/citrix-netscaler-rce-cve-2026-1074062026-10-09
PoC in GitHubmaxprog-svg/CVE-2026-1074062026-11-01

History

History
RecordedChangedSources
exploits, factsPoC in GitHub
first indexedCVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-107406 is a critical vulnerability (CVSS 9.5) in Netscaler Adc, published October 8, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.87%, the 79th percentile. No source names a fixed version.

References

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