{"schema":"threatline.record/2","record":{"id":"CVE-2026-8452","aliases":[],"summary":"Citrix NetScaler ADC and NetScaler Gateway Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability","details":"Citrix NetScaler ADC and NetScaler Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability which could lead to denial of service. ","categories":["Network & edge"],"product":"NetScaler ADC and NetScaler Gateway","vendor":"Citrix","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-8452","source_modified_at":"2026-08-27T03:56:34.886Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"ADC","vendor":"NetScaler","versions":[{"status":"affected","version":"14.1","lessThan":"72.61","versionType":"patch"},{"status":"affected","version":"13.1","lessThan":"63.18","versionType":"patch"},{"status":"affected","version":"14.1 FIPS","lessThan":"72.61","versionType":"patch"},{"status":"affected","version":"13.1 FIPS and NDcPP","lessThan":"37.272","versionType":"patch"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-8452","source_modified_at":"2026-08-27T03:56:34.886Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Gateway","vendor":"NetScaler","versions":[{"status":"affected","version":"14.1","lessThan":"72.61","versionType":"patch"},{"status":"affected","version":"13.1","lessThan":"63.18","versionType":"patch"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-8452","source_modified_at":"2026-08-27T03:56:34.886Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"ADC","ecosystem":null},"version":"72.61","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-8452","source_modified_at":"2026-08-27T03:56:34.886Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"ADC","ecosystem":null},"version":"63.18","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-8452","source_modified_at":"2026-08-27T03:56:34.886Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"ADC","ecosystem":null},"version":"37.272","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-8452","source_modified_at":"2026-08-27T03:56:34.886Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Gateway","ecosystem":null},"version":"72.61","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-8452","source_modified_at":"2026-08-27T03:56:34.886Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Gateway","ecosystem":null},"version":"63.18","basis":"first unaffected version stated in the CVE record"}],"cvss":8.8,"severity":"High","kev":{"listed":true,"date_added":"2026-08-26","due_date":"2026-08-29","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.01011,"percentile":0.6287,"score_date":"2026-10-23"},"published_at":"2026-06-30T12:41:07.622Z","modified_at":"2026-08-27T03:56:34.886Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-8452","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-08-27T03:56:34.886Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-8452","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8452","source":"CISA KEV"},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-8452","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"partial","assessed_at":"2026-08-26T00:00:00+00:00"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-08-27T03:56:34.886Z","content_hash":"b8665a44c4d19a20e825a50e32c7eb145013260bba7666b5c904f2e95d9ef22b"}}