Memory overflow vulnerability leading to Remote Code Execution or Denial of Service
Summary
| CVE | CVE-2026-107406 |
|---|---|
| State | PUBLISHED |
| Assigner | NetScaler |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-08 22:17:26 UTC |
| Updated | 2026-10-10 04:18:09 UTC |
| Description | 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 |
Risk And Classification
Primary CVSS: v4.0 9.5 CRITICAL from 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5
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
EPSS: 0.004140000 probability, percentile 0.337190000 (date 2026-10-09)
Problem Types: CWE-119 | CWE-119 CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5 | Secondary | 9.5 | CRITICAL | 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/C... |
| 4.0 | CNA | CVSS | 9.5 | CRITICAL | 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 |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
HighAttack Requirements
NonePrivileges Required
NoneUser Interaction
NoneConfidentiality
HighIntegrity
HighAvailability
HighSub Conf.
HighSub Integrity
HighSub Availability
LowCVSS: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
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | NetScaler | ADC | affected 14.1-73.46 patch | Not specified |
| CNA | NetScaler | ADC | affected 13.1-64.29 patch | Not specified |
| CNA | NetScaler | ADC | affected 14.1-73.46 FIPS patch | Not specified |
| CNA | NetScaler | ADC | affected 13.1.37.283 FIPS patch | Not specified |
| CNA | NetScaler | Gateway | affected 14.1-73.46 patch | Not specified |
| CNA | NetScaler | Gateway | affected 13.1-64.29 patch | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| support.citrix.com/support-home/kbsearch/article | 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5 | support.citrix.com | |
| community.citrix.com/techzone-blogs/110_security-updates/protecting-customers-imme... | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | community.citrix.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.