VULNERABILITY INTELLIGENCE

CVE-2023-4966

CVSS score9.4 CRITICAL

EPSS probability100.00%

CISA KEVKnown exploited vulnerability

Published2023-10-10

Last modified2026-07-31

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

Known Exploited Vulnerability

Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability

Vendor / product: Citrix / NetScaler ADC and NetScaler Gateway

Description

Sensitive information disclosure in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA  virtual server.

Weakness classification

secure@citrix.com: CWE-119
nvd@nist.gov: NVD-CWE-noinfo

Primary references

secure@citrix.com — Third Party Advisory, VDB Entry
secure@citrix.com — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource