{"cve":{"cve_id":"CVE-2001-1431","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.01302,"epss_percentile":0.66765,"epss_as_of":"2026-06-23","description":"Nokia Firewall Appliances running IPSO 3.3 and VPN-1/FireWall-1 4.1 Service Pack 3, IPSO 3.4 and VPN-1/FireWall-1 4.1 Service Pack 4, and IPSO 3.4 or IPSO 3.4.1 and VPN-1/FireWall-1 4.1 Service Pack 5, when SYN Defender is configured in Active Gateway mode, does not properly rewrite the third packet of a TCP three-way handshake to use the NAT IP address, which allows remote attackers to gain sensitive information.","published_at":"2005-03-24T05:00:00Z","last_modified_at":"2026-06-16T21:56:15.687000Z","cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://exchange.xforce.ibmcloud.com/vulnerabilities/8293","http://www.kb.cert.org/vuls/id/258731"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:02:18.397925Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"checkpoint","vendor_name":"checkpoint","product_slug":"firewall-1","product_name":"firewall-1","version_start":"4.1","version_start_inclusive":true,"version_end":"4.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:checkpoint:firewall-1:4.1:sp3:*:*:*:*:*:*"},{"vendor_slug":"checkpoint","vendor_name":"checkpoint","product_slug":"firewall-1","product_name":"firewall-1","version_start":"4.1","version_start_inclusive":true,"version_end":"4.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:checkpoint:firewall-1:4.1:sp4:*:*:*:*:*:*"},{"vendor_slug":"checkpoint","vendor_name":"checkpoint","product_slug":"firewall-1","product_name":"firewall-1","version_start":"4.1","version_start_inclusive":true,"version_end":"4.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:checkpoint:firewall-1:4.1:sp5:*:*:*:*:*:*"},{"vendor_slug":"checkpoint","vendor_name":"checkpoint","product_slug":"vpn-1","product_name":"vpn-1","version_start":"4.1","version_start_inclusive":true,"version_end":"4.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:checkpoint:vpn-1:4.1:sp3:*:*:*:*:*:*"},{"vendor_slug":"checkpoint","vendor_name":"checkpoint","product_slug":"vpn-1","product_name":"vpn-1","version_start":"4.1","version_start_inclusive":true,"version_end":"4.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:checkpoint:vpn-1:4.1:sp4:*:*:*:*:*:*"},{"vendor_slug":"nokia","vendor_name":"Nokia","product_slug":"firewall-appliance","product_name":"firewall_appliance","version_start":"ipso_3.3","version_start_inclusive":true,"version_end":"ipso_3.3","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:h:nokia:firewall_appliance:ipso_3.3:*:*:*:*:*:*:*"},{"vendor_slug":"nokia","vendor_name":"Nokia","product_slug":"firewall-appliance","product_name":"firewall_appliance","version_start":"ipso_3.4","version_start_inclusive":true,"version_end":"ipso_3.4","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:h:nokia:firewall_appliance:ipso_3.4:*:*:*:*:*:*:*"},{"vendor_slug":"nokia","vendor_name":"Nokia","product_slug":"firewall-appliance","product_name":"firewall_appliance","version_start":"ipso_3.41","version_start_inclusive":true,"version_end":"ipso_3.41","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:h:nokia:firewall_appliance:ipso_3.41:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/8293","source_type":"MISC","tags":[]},{"url":"http://www.kb.cert.org/vuls/id/258731","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2005-03-24T05:00:00Z","label":"CVE published","source":null}]}