CVE-2026-88779
Vulnerability in NetScaler ADC and NetScaler Gateway.
- Severity: High
- CVSS 8.7
- EPSS 0.59%
- On CISA KEV
- P1 · Patch now
Why P1: on CISA KEV.
Description
Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28.
CISA Known Exploited Vulnerability
Added 2026-10-04, remediation due 2026-10-07. Ransomware use: Unknown. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for…
Affected products
- Citrix NetScaler Version details not specified by CISA
- citrix netscaler application delivery controller >= 13.1, < 13.1-37.282
- citrix netscaler application delivery controller >= 13.1, < 13.1-37.282
- citrix netscaler application delivery controller >= 13.1, < 13.1-64.28
- citrix netscaler application delivery controller >= 14.1, < 14.1-73.41
- citrix netscaler application delivery controller >= 14.1-66.68, <= 14.1-73.41
- citrix netscaler gateway >= 13.1, < 13.1-64.28
- citrix netscaler gateway >= 14.1, < 14.1-73.41
Weakness
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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
References
- NVD record NVD
- CVE Program record CVE Program
- Reference NVD
- Reference NVD
- Reference NVD
- GitHub security advisory GitHub
- Advisory reference GitHub
- CISA KEV catalog CISA