{"id":"CVE-2011-4862","aliases":["DEBIAN-CVE-2011-4862","DSA-2372-1","DSA-2373-1","DSA-2375-1","EUVD-2011-4779","GHSA-x8cr-m6vm-pqh4","RHSA-2011:1851","RHSA-2011:1852","RHSA-2011:1853","RHSA-2011:1854","openSUSE-SU-2024:13497-1"],"status":"published","title":"Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos...","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.","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.95061,"percentile":0.99862,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-120"],"published":"2011-12-25T00:00:00Z","modified":"2026-10-23T17:47:35Z","exploits":[{"source":"metasploit","id":"exploit/freebsd/telnet/telnet_encrypt_keyid","title":"FreeBSD Telnet Service Encryption Key ID Buffer Overflow","type":"exploit","platform":"BSD","date":"2011-12-23","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/freebsd/telnet/telnet_encrypt_keyid"},{"source":"metasploit","id":"exploit/linux/telnet/telnet_encrypt_keyid","title":"Linux BSD-derived Telnet Service Encryption Key ID Buffer Overflow","type":"exploit","platform":"Linux","date":"2011-12-23","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/linux/telnet/telnet_encrypt_keyid"},{"source":"exploitdb","id":"EDB-18280","title":"TelnetD encrypt_keyid - Function Pointer Overwrite","type":"remote","platform":"linux","date":"2011-12-26","verified":true,"url":"https://www.exploit-db.com/exploits/18280"},{"source":"exploitdb","id":"EDB-18368","title":"Linux BSD-derived Telnet Service Encryption Key ID - Remote Buffer Overflow (Metasploit)","type":"remote","platform":"linux","date":"2012-01-14","verified":true,"url":"https://www.exploit-db.com/exploits/18368"},{"source":"exploitdb","id":"EDB-18369","title":"FreeBSD - Telnet Service Encryption Key ID Buffer Overflow (Metasploit)","type":"remote","platform":"bsd","date":"2012-01-14","verified":true,"url":"https://www.exploit-db.com/exploits/18369"},{"source":"pocgithub","id":"hdbreaker/GO-CVE-2011-4862","title":"hdbreaker/GO-CVE-2011-4862","date":"2017-02-02","url":"https://github.com/hdbreaker/GO-CVE-2011-4862"},{"source":"pocgithub","id":"lol-fi/cve-2011-4862","title":"lol-fi/cve-2011-4862","date":"2018-11-28","url":"https://github.com/lol-fi/cve-2011-4862"},{"source":"pocgithub","id":"appsecrani/CVE-2011-4862","title":"appsecrani/CVE-2011-4862","date":"2020-02-06","url":"https://github.com/appsecrani/CVE-2011-4862"},{"source":"metasploit","id":"auxiliary/scanner/telnet/telnet_encrypt_overflow","title":"Telnet Service Encryption Key ID Overflow 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