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    CVE-2026-88773

    Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') 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 and NDcPP; Gateway: before 14.1-73.37 FIPS and before 13.1-64.23.

    Published:Sep 27, 2026
    Last Modified:Sep 29, 2026
    EPS:Sep 27, 2026
    EPSS Score:0.00361
    CVSS Score:10

    Affected Products

    Vendor
    Citrix
    Product
    Netscaler Adc
    Vendor
    Citrix
    Product
    Netscaler Application Delivery Controller
    Vendor
    Citrix
    Product
    Netscaler Gateway

    Exploits

    https://github.com/CompleTech-Security/netscaler-cve-2026-88773-checkhttps://github.com/completetech-security/netscaler-cve-2026-88773-checkhttps://github.com/CompleteTech-Security/netscaler-cve-2026-88773-checkhttps://github.com/CompleTetech-Security/netscaler-cve-2026-88773-checkhttps://github.com/Fyyre/CVE-2026-88773https://github.com/Scyrix-LLC/CVE-2026-88773

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-273 HTTP Response Smuggling
    CAPEC-33 HTTP Request Smuggling

    Related CVEs

    CVE-2026-88778 (CVSS 8.8) — Predictable exact value from previous values vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gatewa…
    CVE-2026-88777 (CVSS 8.8) — Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue …
    CVE-2026-88776 (CVSS 8.8) — Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue a…
    CVE-2026-88775 (CVSS 8.8) — Memory overflow vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: b…
    CVE-2026-88774 (CVSS 7) — Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37…
    CVE-2026-88772 (CVSS 9.5) — Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37…
    CVE-2026-88771 (CVSS 9.5) — Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affe…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High