{"identifier":"CVE-2025-7775","cve":{"id":"CVE-2025-7775","description":"Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server\n\n(OR)\n\nNetScaler ADC and NetScaler Gateway 13.1, 14.1, 13.1-FIPS and NDcPP: LB virtual servers of type (HTTP, SSL or HTTP_QUIC) bound with IPv6 services or servicegroups bound with IPv6 servers \n\n(OR)\n\nNetScaler ADC and NetScaler Gateway 13.1, 14.1, 13.1-FIPS and NDcPP: LB virtual servers of type (HTTP, SSL or HTTP_QUIC) bound with DBS IPv6 services or servicegroups bound with IPv6 DBS servers\n\n(OR)\n\nCR virtual server with type HDX","published":"2025-08-26T13:15:32.870000+00:00","modified":"2026-06-17T10:05:38.060000+00:00","status":"Analyzed","score":9.2,"severity":"CRITICAL","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/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:X/V:X/RE:X/U:X","cvss_version":"4.0","affected":[{"criteria":"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*","versionStartIncluding":"12.1","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"12.1-55.330"},{"criteria":"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*","versionStartIncluding":"12.1","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"12.1-55.330"},{"criteria":"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*","versionStartIncluding":"13.1","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"13.1-37.241"},{"criteria":"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*","versionStartIncluding":"13.1","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"13.1-37.241"},{"criteria":"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*","versionStartIncluding":"13.1","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"13.1-59.22"},{"criteria":"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*","versionStartIncluding":"14.1","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"14.1-47.48"},{"criteria":"cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*","versionStartIncluding":"13.1","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"13.1-59.22"},{"criteria":"cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"14.1-47.48"}],"weaknesses":["CWE-119"],"references":[{"url":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938","source":"secure@citrix.com","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-7775","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["US Government Resource"]}],"kev":{"cveID":"CVE-2025-7775","vendorProject":"Citrix","product":"NetScaler","vulnerabilityName":"Citrix NetScaler Memory Overflow Vulnerability","dateAdded":"2025-08-26","shortDescription":"Citrix NetScaler ADC and NetScaler Gateway contain a memory overflow vulnerability that could allow for remote code execution and/or denial of service.","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","dueDate":"2025-08-28","knownRansomwareCampaignUse":"Unknown","forensicTriage":"No","notes":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938 ; https://nvd.nist.gov/vuln/detail/CVE-2025-7775","cwes":["CWE-119"]},"kev_checked":true,"metrics":{"cvssMetricV40":[{"source":"secure@citrix.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/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:X/V:X/RE:X/U:X","baseScore":9.2,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","subAvailabilityImpact":"LOW","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-08-27T03:55:14.429609Z","id":"CVE-2025-7775","options":[{"exploitation":"active"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*","versionStartIncluding":"12.1","versionEndExcluding":"12.1-55.330","matchCriteriaId":"5920186A-2278-4C5E-A2EE-047C4F6FAACD"},{"vulnerable":true,"criteria":"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*","versionStartIncluding":"12.1","versionEndExcluding":"12.1-55.330","matchCriteriaId":"E09EC98B-E057-4FF7-9B18-EF460A29B876"},{"vulnerable":true,"criteria":"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*","versionStartIncluding":"13.1","versionEndExcluding":"13.1-37.241","matchCriteriaId":"0096548F-A846-4D80-A4C6-71389543630F"},{"vulnerable":true,"criteria":"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*","versionStartIncluding":"13.1","versionEndExcluding":"13.1-37.241","matchCriteriaId":"F40E29F2-8013-41A8-91A5-848FE6365876"},{"vulnerable":true,"criteria":"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*","versionStartIncluding":"13.1","versionEndExcluding":"13.1-59.22","matchCriteriaId":"C2009493-AAFD-4090-84BC-5217A860E42A"},{"vulnerable":true,"criteria":"cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*","versionStartIncluding":"14.1","versionEndExcluding":"14.1-47.48","matchCriteriaId":"3487EADF-F387-4DD4-B600-B1EBC416632E"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*","versionStartIncluding":"13.1","versionEndExcluding":"13.1-59.22","matchCriteriaId":"DBA34500-BFE6-4B33-A52B-326C4C2069B1"},{"vulnerable":true,"criteria":"cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1","versionEndExcluding":"14.1-47.48","matchCriteriaId":"004E06F6-0ABF-4414-B2A2-8834C1E6107D"}]}]}],"source":"nvd","retrieved_at":"2026-10-29T23:36:26.866448+00:00","exploited":true,"kev_stale":false,"products":["citrix / netscaler application delivery controller","citrix / netscaler gateway"],"priority":{"label":"Known exploitation: prioritize review","reasons":["CISA KEV lists real-world exploitation."]},"epss":{"probability":0.2067,"percentile":0.9752,"date":"2026-10-29","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"support.citrix.com","source_url":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938","investigate_url":"https://investigate.aeglixmind.com/#support.citrix.com"},{"domain":"www.cisa.gov","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-7775","investigate_url":"https://investigate.aeglixmind.com/#www.cisa.gov"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2025-7775","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2025-7775","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2025-7775","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}