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CVE-2026-88774— Feature policy bypass due to improper HTTP URL based expression usage

Quick assessment

Affected
Citrix NetScaler ADC
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Citrix NetScaler ADC 和 Citrix NetScaler Gateway 存在安全漏洞。 该问题影响以下版本： ADC：在 14.1-73.37 之前、13.1-64.23 之前、14.1-73.37 FIPS 之前，以及 13.1.37.279 FIPS 和 NDcPP 之前； Gateway：在 14.1-73.37 之前、13.1-64.23 之前。 此漏洞源于对基于 HTTP URL 的表达式使用不当，可能导致功能策略被绕过。

CVSS 7.0 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-88774

Vulnerability Information
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Vulnerability Title
Feature policy bypass due to improper HTTP URL based expression usage
Source: CVE Program / CVE List V5
Vulnerability Description
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 a feature policy bypass due to improper HTTP URL based expression usage.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Citrix NetScaler ADC 0 ~ 14.1-73.37 -
Citrix NetScaler Gateway 0 ~ 14.1-73.37 -

II. Public POCs for CVE-2026-88774

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III. Intelligence Information for CVE-2026-88774

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Other References for CVE-2026-88774 (1)

Same Patch Batch · Citrix NetScaler · 2026-09-27 · 8 CVEs total

CVE-2026-88771 9.5 CRITICAL A remote code execution vulnerability exists due to improper input validation, which can a
CVE-2026-88772 9.5 CRITICAL Memory overflow vulnerability leading to Remote Code Execution or Denial of Service
CVE-2026-88773 9.3 CRITICAL HTTP Request Smuggling
CVE-2026-88775 8.8 HIGH Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of
CVE-2026-88776 8.8 HIGH Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of
CVE-2026-88778 8.8 HIGH TCP Initial Sequence Number (ISN) prediction
CVE-2026-88777 8.8 HIGH Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of

IV. Related Vulnerabilities

Same product: ADC
Same vendor: Citrix NetScaler

V. Comments for CVE-2026-88774

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