{"cve_id":"CVE-2011-4862","published":"2011-12-25T01:55:02.210000+00:00","last_modified":"2026-06-16T23:35:31.837000+00:00","vuln_status":"Modified","description":"Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and earlier, Heimdal 1.5.1 and earlier, GNU inetutils, and possibly other products allows remote attackers to execute arbitrary code via a long encryption key, as exploited in the wild in December 2011.","cvss_version":"2.0","cvss_vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","base_score":10.0,"base_severity":"HIGH","attack_vector":"NETWORK","privileges_req":"","user_interaction":"NONE","scope":"","impact_c":"COMPLETE","impact_i":"COMPLETE","impact_a":"COMPLETE","cwe_ids":["CWE-120"],"in_kev":false,"kev_date_added":null,"kev_ransomware":false,"epss_score":0.95061,"epss_percentile":0.99862,"cap_rule_version":"0.1.1","stage":"INITIAL_ACCESS","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T08:02:21.191421+00:00","first_seen":"2011-12-25T01:55:02.210000+00:00","kev_first_seen":null,"novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["debian","fedoraproject","freebsd","gnu","heimdal_project","mit","opensuse","suse"],"products":["debian_linux","fedora","freebsd","heimdal","inetutils","krb5-appl","linux_enterprise_desktop","linux_enterprise_server","linux_enterprise_software_development_kit","opensuse"],"affected":[{"vendor":"debian","product":"debian_linux","ranges":["5.0","7.0","6.0"]},{"vendor":"fedoraproject","product":"fedora","ranges":["15","16"]},{"vendor":"freebsd","product":"freebsd","ranges":["≥ 7.3 and ≤ 9.0"]},{"vendor":"gnu","product":"inetutils","ranges":["< 1.9"]},{"vendor":"heimdal_project","product":"heimdal","ranges":["≤ 1.5.1"]},{"vendor":"mit","product":"krb5-appl","ranges":["≤ 1.0.2"]},{"vendor":"opensuse","product":"opensuse","ranges":["11.3","11.4"]},{"vendor":"suse","product":"linux_enterprise_desktop","ranges":["10","11"]},{"vendor":"suse","product":"linux_enterprise_server","ranges":["9","10","11"]},{"vendor":"suse","product":"linux_enterprise_software_development_kit","ranges":["10","11"]}]}