CVE-2023-4966
CriticalPublished
Unauthenticated sensitive information disclosure
- Published
- Oct 10, 2023
- Updated
- Jul 31, 2026
- Assigning CNA
- Citrix
- Evidence observed
- Oct 18, 2023
Primary CVSS
9.4/ 10Critical
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L100.0%
High · next 30 days
- Percentile
- 100.0%
- Model date
- Oct 19, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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.
Sources
Repository evidence: Files: 2 · Repositories: 2
1 Module1 Template
modules/auxiliary/scanner/http/citrix_bleed_cve_2023_4966.rb
Metasploit Framework modulesDeclared conditions
- verification: check_not_declared($.auxiliary_scanner/http/citrix_bleed_cve_2023_4966.check)
http/cves/2023/CVE-2023-4966.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: word($.matchers[*].type)
Responsible use
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