{"id":"CVE-2026-8452","state":"PUBLISHED","title":"Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service","description":"Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server","publishedAt":"2026-06-30T12:41:07.622Z","updatedAt":"2026-08-27T03:56:34.886Z","severity":{"score":8.8,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:L/SI:L/SA:L","source":"NetScaler"},"assigner":"NetScaler","products":["NetScaler ADC","NetScaler Gateway"],"affected":[{"vendor":"NetScaler","product":"ADC","defaultStatus":"unaffected","versions":[{"version":"14.1","status":"affected","lessThan":"72.61","versionType":"patch"},{"version":"13.1","status":"affected","lessThan":"63.18","versionType":"patch"},{"version":"14.1 FIPS","status":"affected","lessThan":"72.61","versionType":"patch"},{"version":"13.1 FIPS and NDcPP","status":"affected","lessThan":"37.272","versionType":"patch"}]},{"vendor":"NetScaler","product":"Gateway","defaultStatus":"unaffected","versions":[{"version":"14.1","status":"affected","lessThan":"72.61","versionType":"patch"},{"version":"13.1","status":"affected","lessThan":"63.18","versionType":"patch"}]}],"references":["https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8452"],"weaknesses":["CWE-119"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/8xxx/CVE-2026-8452.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-8452","state":"PUBLISHED","datePublished":"2026-06-30T12:41:07.622Z","dateUpdated":"2026-08-27T03:56:34.886Z","assignerShortName":"NetScaler","assignerOrgId":"50a63c94-1ea7-4568-8c11-eb79e7c5a2b5","dateReserved":"2026-05-13T00:35:55.317Z"},"containers":{"cna":{"title":"Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service","descriptions":[{"lang":"en","value":"Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server"}],"affected":[{"vendor":"NetScaler","product":"ADC","defaultStatus":"unaffected","versions":[{"version":"14.1","status":"affected","lessThan":"72.61","versionType":"patch"},{"version":"13.1","status":"affected","lessThan":"63.18","versionType":"patch"},{"version":"14.1 FIPS","status":"affected","lessThan":"72.61","versionType":"patch"},{"version":"13.1 FIPS and NDcPP","status":"affected","lessThan":"37.272","versionType":"patch"}]},{"vendor":"NetScaler","product":"Gateway","defaultStatus":"unaffected","versions":[{"version":"14.1","status":"affected","lessThan":"72.61","versionType":"patch"},{"version":"13.1","status":"affected","lessThan":"63.18","versionType":"patch"}]}],"references":[{"url":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"LOW","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.8,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:L/SI:L/SA:L"}}],"providerMetadata":{"shortName":"NetScaler","orgId":"50a63c94-1ea7-4568-8c11-eb79e7c5a2b5","dateUpdated":"2026-06-30T12:57:25.158Z"},"datePublic":"2026-06-30T12:00:00.000Z","source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8452","tags":["government-resource"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-26T00:00:00+00:00","options":[{"Exploitation":"active"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-8452"}}},{"other":{"type":"kev","content":{"dateAdded":"2026-08-26","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8452"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-119","lang":"en","type":"CWE","description":"CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-27T03:56:34.886Z"},"timeline":[{"time":"2026-08-26T00:00:00.000Z","lang":"en","value":"CVE-2026-8452 added to CISA KEV"}]}]}}}