CVE-2026-88771

A remote code execution vulnerability exists due to improper input validation, which can allow an unauthenticated attacker to execute arbitrary commands

State: Published
Severity: 9.5 Critical
Published: Sep 27, 2026
Updated: Sep 29, 2026
Reserved: Sep 10, 2026

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Description

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.

Scores

CVSS	Score	Vector	Source
4.0	9.5 Critical	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	NetScaler

Weaknesses

CWE-20 Improper input validation

Affected Products

Product	Versions
ADCCitrix NetScaler	before 14.1-73.37Affected before 13.1-64.23Affected before 14.1-73.37 FIPSAffected before 13.1.37.279 FIPS and NDcPPAffected
GatewayCitrix NetScaler	before 14.1-73.37Affected before 13.1-64.23Affected

References

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