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CVE-2026-88779

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.

Scores

8.7
CVSS 8.7 out of 10, high severity.
0.6%
EPSS 0.6% chance of exploitation in the next 30 days.

The facts

Published
4 October 2026
Last changed
5 October 2026
NVD status
Analyzed
Severity
High, CVSS 8.7 out of 10 (version 4.0)
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…
Weakness
Affects
  • citrix netscaler application delivery controller
  • citrix netscaler gateway
Known exploited
Yes. CISA added it to the Known Exploited Vulnerabilities catalogue on 4 October 2026.
EPSS
0.6% chance of exploitation activity in the next 30 days (percentile 47).

Is there a Securelyn advisory?

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References