{"cve":"CVE-2001-1444","nvd":{"published":"2001-08-27T04:00:00.000","modified":"2026-06-16T21:56:17.273","status":"Modified","description":"The Kerberos Telnet protocol, as implemented by KTH Kerberos IV and Kerberos V (Heimdal), does not encrypt authentication and encryption options sent from the server, which allows remote attackers to downgrade authentication and encryption mechanisms via a man-in-the-middle attack.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://josefsson.org/ktelnet/kerberos-telnet.html","http://www.kb.cert.org/vuls/id/774587","https://exchange.xforce.ibmcloud.com/vulnerabilities/10640","http://josefsson.org/ktelnet/kerberos-telnet.html","http://www.kb.cert.org/vuls/id/774587"],"products":["kth:kth_kerberos"],"source":"nvd","synced_at":"2026-10-19T19:33:02.361923049+00:00"},"epss":{"cve":"CVE-2001-1444","score":0.01296,"percentile":0.7036,"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."]}