CVE-2026-88773

9.3 criticalEPSS 3.4%

Critical (9.3) in citrix. EPSS 3.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

9.3 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N

CVSS 3.1

10.0 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

EPSS: 3.4% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWE: CWE-444
Published: 2026-09-27
Modified: 2026-09-29
Record from: the NVD, synced 2026-10-19

Affected

citrix:netscaler_application_delivery_controller
citrix:netscaler_gateway

References

https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697096

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