{"cve":"CVE-2000-0268","nvd":{"published":"2000-04-20T04:00:00.000","modified":"2026-06-16T21:51:21.700","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://www.cisco.com/warp/public/707/iostelnetopt-pub.shtml","http://www.osvdb.org/1289","http://www.securityfocus.com/bid/1123","http://www.cisco.com/warp/public/707/iostelnetopt-pub.shtml","http://www.osvdb.org/1289"],"products":["cisco:3660_router","cisco:7100_router","cisco:7200_router","cisco:7500_router","cisco:accesspath","cisco:as5200","cisco:as5300","cisco:as5800","cisco:ios","cisco:system_controller_3640","cisco:ubr7200","cisco:voice_gateway_as5800"],"source":"nvd","synced_at":"2026-10-19T19:33:01.030757803+00:00"},"epss":{"cve":"CVE-2000-0268","score":0.01657,"percentile":0.76619,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}