Vulnerability Report

CVE-2026-88771

RCE CISA KEV Active

Title: Improper Input Validation leading to Arbitrary Command Execution

RCE

Proof Of Concept

PoC Available for CVE-2026-88771

CWE Category CWE-20
Published Date Sep 27, 2026
Modified Date Sep 29, 2026
Exploit Status Available
Score 9.5 CVSS v4.0
Exploit Probability (EPSS)
82.16%

Vulnerability Summary

CVE-2026-88771: Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to an unauthenticated attacker to execute arbitrary commands.

Impacted Vendors

C
citrix 2

Reference Links

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697096
CVSS v4.0
Source Entity 50a63c94-1ea7-4568-8c11-eb79e7c5a2b5
Severity CRITICAL
9.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
N/A
RAW VECTOR CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
CVSS v3.1
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-88771 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/techupdate24/citrix-netscaler-cve-2026-88771-rce
View Code
GitHub https://github.com/EXEcution-py/CVE-2026-88771-POC
View Code
GitHub https://github.com/watchtowrlabs/watchTowr-vs-Citrix-Netscaler-CVE-2026-88771
View Code
GitHub https://github.com/securekomodo/citrixInspector
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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

Affected Stack

No specific products linked.