{"cve":{"cve_id":"CVE-2000-0268","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":0.01657,"epss_percentile":0.73557,"epss_as_of":"2026-06-23","description":"Cisco IOS 11.x and 12.x allows remote attackers to cause a denial of service by sending the ENVIRON option to the Telnet daemon before it is ready to accept it, which causes the system to reboot.","published_at":"2000-06-02T04:00:00Z","last_modified_at":"2026-06-16T21:51:21.700000Z","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":["http://www.securityfocus.com/bid/1123","http://www.osvdb.org/1289","http://www.cisco.com/warp/public/707/iostelnetopt-pub.shtml"],"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":"2026-06-28T23:02:06.830424Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"3660-router","product_name":"3660_router","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:h:cisco:3660_router:*:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"7100-router","product_name":"7100_router","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:h:cisco:7100_router:*:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"7200-router","product_name":"7200_router","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:h:cisco:7200_router:*:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"7500-router","product_name":"7500_router","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:h:cisco:7500_router:*:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"accesspath","product_name":"accesspath","version_start":"ls-3","version_start_inclusive":true,"version_end":"ls-3","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:cisco:accesspath:ls-3:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"accesspath","product_name":"accesspath","version_start":"ts-3","version_start_inclusive":true,"version_end":"ts-3","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:cisco:accesspath:ts-3:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"accesspath","product_name":"accesspath","version_start":"vs-3","version_start_inclusive":true,"version_end":"vs-3","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:cisco:accesspath:vs-3:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"as5200","product_name":"as5200","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:cisco:as5200:*:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"as5300","product_name":"as5300","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:cisco:as5300:*:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"as5800","product_name":"as5800","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:cisco:as5800:*:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"12.0(5)","version_start_inclusive":true,"version_end":"12.0(5)","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:12.0\\(5\\):*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"12.0(6)","version_start_inclusive":true,"version_end":"12.0(6)","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:12.0\\(6\\):*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"12.0(7)t","version_start_inclusive":true,"version_end":"12.0(7)t","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:12.0\\(7\\)t:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"11.3aa","version_start_inclusive":true,"version_end":"11.3aa","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:11.3aa:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"12.0(2)","version_start_inclusive":true,"version_end":"12.0(2)","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:12.0\\(2\\):*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"12.0(2)xc","version_start_inclusive":true,"version_end":"12.0(2)xc","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:12.0\\(2\\)xc:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"12.0(2)xd","version_start_inclusive":true,"version_end":"12.0(2)xd","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:12.0\\(2\\)xd:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"12.0(2)xf","version_start_inclusive":true,"version_end":"12.0(2)xf","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:12.0\\(2\\)xf:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"12.0(2)xg","version_start_inclusive":true,"version_end":"12.0(2)xg","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:12.0\\(2\\)xg:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"12.0(3)t2","version_start_inclusive":true,"version_end":"12.0(3)t2","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:12.0\\(3\\)t2:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"12.0(4)","version_start_inclusive":true,"version_end":"12.0(4)","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:12.0\\(4\\):*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"12.0(4)s","version_start_inclusive":true,"version_end":"12.0(4)s","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:12.0\\(4\\)s:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ios","product_name":"IOS","version_start":"12.0(4)t","version_start_inclusive":true,"version_end":"12.0(4)t","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:cisco:ios:12.0\\(4\\)t:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"system-controller-3640","product_name":"system_controller_3640","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:cisco:system_controller_3640:*:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"ubr7200","product_name":"ubr7200","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:h:cisco:ubr7200:*:*:*:*:*:*:*:*"},{"vendor_slug":"cisco","vendor_name":"Cisco","product_slug":"voice-gateway-as5800","product_name":"voice_gateway_as5800","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:h:cisco:voice_gateway_as5800:*:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"http://www.securityfocus.com/bid/1123","source_type":"MISC","tags":[]},{"url":"http://www.osvdb.org/1289","source_type":"MISC","tags":[]},{"url":"http://www.cisco.com/warp/public/707/iostelnetopt-pub.shtml","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2000-06-02T04:00:00Z","label":"CVE published","source":null}]}