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Leaking Session Tokens","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-4966.yaml"}],"products":[{"vendor":"citrix","product":"netscaler adc"},{"vendor":"citrix","product":"netscaler adc and netscaler gateway"},{"vendor":"citrix","product":"netscaler gateway"},{"vendor":"citrix","product":"netscaler_application_delivery_controller"},{"vendor":"citrix","product":"netscaler_gateway"},{"vendor":"cloud software group","product":"netscaler gateway"}],"references":[{"url":"https://support.citrix.com/article/CTX579459","tags":["x_transferred","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/175323/Citrix-Bleed-Session-Token-Leakage-Proof-Of-Concept.html","tags":["x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4966","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4966"},{"url":"https://github.com/advisories/GHSA-2g42-2pwg-93cj"}],"sources":{"cve":[{"id":"CVE-2023-4966","title":"Unauthenticated sensitive information disclosure","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.","status":"published","published":"2023-10-10T13:12:17.644Z","modified":"2026-07-31T03:55:28.627Z","cvss":[{"version":"3.1","score":9.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","level":"critical","assessor":"cna"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:35:30.474787Z"}],"euvd":[{"id":"EUVD-2023-54802","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.","status":"published","published":"2023-10-10T13:12:17Z","modified":"2026-07-31T03:55:28Z","cvss":[{"version":"3.1","score":9.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","level":"critical"}],"exploited_since":"2023-10-18","updated_at":"2026-11-02T18:02:26.773248Z"}],"ghsa":[{"id":"GHSA-2g42-2pwg-93cj","title":"Sensitive information disclosure in NetScaler ADC and NetScaler Gateway when configured as a...","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. \n\n\n\n","status":"published","published":"2023-10-10T15:30:51Z","modified":"2023-11-12T05:01:25Z","cvss":[{"version":"3.1","score":9.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","level":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:54:59.595653Z"}],"kev":[{"id":"CVE-2023-4966","title":"Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability","description":"Citrix NetScaler ADC and NetScaler Gateway contain a buffer overflow vulnerability that allows for sensitive information disclosure when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server.","cwes":["CWE-119"],"kev":{"date_added":"2023-10-18","due_date":"2023-11-08","required_action":"Apply mitigations and kill all active and persistent sessions per vendor instructions [https://www.netscaler.com/blog/news/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway/] OR discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Known"},"updated_at":"2026-11-02T17:00:16.234141Z"}],"nvd":[{"id":"CVE-2023-4966","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.","status":"published","published":"2023-10-10T14:15:10.977Z","modified":"2026-07-31T04:16:44.23Z","cvss":[{"version":"3.1","score":9.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","level":"critical","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:08:36.656095Z"}]}}