{"schema":"threatline.record/2","record":{"id":"CVE-2026-50751","aliases":[],"summary":"Check Point Security Gateway Improper Authentication Vulnerability","details":"Check Point Security Gateway contains an improper authentication vulnerability in IKEv1 key exchange that could allow an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password.","categories":["Network & edge"],"product":"Security Gateway","vendor":"Check Point","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-50751","source_modified_at":"2026-08-04T03:56:11.310Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Quantum Security Gateway","vendor":"checkpoint","versions":[{"status":"affected","version":"R82.10 with Jumbo Hotfix Take 19 or below"},{"status":"affected","version":"R82 with Jumbo Hotfix Take 103 or below"},{"status":"affected","version":"R81.20 with Jumbo Hotfix Take 141 or below"},{"status":"affected","version":"R81.10, R81, and R80.40"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-50751","source_modified_at":"2026-08-04T03:56:11.310Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Spark Firewalls","vendor":"checkpoint","versions":[{"status":"affected","version":"R80.20.X, R81.10.X, and R82.00.X"}],"defaultStatus":null}],"fixed_versions":[],"cvss":9.3,"severity":"Critical","kev":{"listed":true,"date_added":"2026-06-08","due_date":"2026-06-11","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","ransomware_campaign_use":"Known"},"epss":{"probability":0.85338,"percentile":0.9972,"score_date":"2026-10-23"},"published_at":"2026-06-08T11:07:15.746Z","modified_at":"2026-08-04T03:56:11.310Z","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-2026-50751","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-08-04T03:56:11.310Z"},{"source":"Nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-50751.yaml","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":null},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-50751","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Nuclei","EPSS"],"references":[{"source":"CVE List","url":"https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol/","tags":["vendor-advisory"]},{"url":"https://support.checkpoint.com/results/sk/sk185033?_gl=1*1wqeqhc*_gcl_au*MTI1MzE5MjI2LjE3ODA5MzQ1NTM.","source":"CISA KEV"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50751","source":"CISA KEV"},{"source":"CVE List","url":"https://support.checkpoint.com/results/sk/sk185033"},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-50751","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"total","assessed_at":"2026-06-08T00:00:00+00:00"},"exploits":[{"source":"Nuclei","kind":"Scanner template","name":"Check Point IKEv1 Remote-Access VPN - Certificate Authentication Bypass","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-50751.yaml"}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-08-04T03:56:11.310Z","content_hash":"9250ae6318a3dfa9d135c49d5ae3e80b4978853df21a1df0d9654474c5d4121d"}}