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Critical · 9.4 Known exploited · Ransomware Scanner template Public exploit CVE-2023-4966 EUVD-2023-54802GHSA-2g42-2pwg-93cj

Unauthenticated sensitive information disclosure

Published Oct 10, 2023 · Updated Jul 31, 2026 · Assigned by Citrix

Vendor: Citrix Product: NetScaler ADC  Product: NetScaler Gateway Category: Network devices

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.

Affected products

VendorProductAffectedFixed
Citrix NetScaler ADC 14.1 – < 8.50, 13.1 – < 49.15, 13.0 – < 92.19, 13.1-FIPS – < 37.164, 12.1-FIPS – < 55.300, 12.1-NDcPP – < 55.300 8.50
Citrix NetScaler Gateway 14.1 – < 8.50, 13.1 – < 49.15, 13.0 – < 92.19 8.50

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Metasploit 1 module

GitHub 14 repositories · most starred shown

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

Advisories 1

References