Cyrus IMAPD < 2.3.4 'POP3D USER' Command Remote Overflow

Medium Nessus Network Monitor Plugin ID 3628


The remote host is vulnerable to a buffer overflow.


According to its banner, the remote Cyrus IMAPD server is vulnerable to a remote buffer overflow attack. The flaw is in the way that IMAPD handles malformed data sent with the 'POP3D USER' command. An attacker exploiting this flaw would need to be able to communicate with the IMAPD server (usually on TCP port 143). A successful attack would result in the attacker executing arbitrary code on the IMAPD server.


Upgrade to version 2.3.4 or higher.

See Also

Plugin Details

Severity: Medium

ID: 3628

Family: IMAP Servers

Published: 2006/05/22

Modified: 2018/07/11

Dependencies: 1086

Risk Information

Risk Factor: Medium


Base Score: 5.1

Temporal Score: 4.8

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:F/RL:U/RC:ND


Base Score: 5.6

Temporal Score: 5.4


Temporal Vector: CVSS3#E:F/RL:U/RC:X

Vulnerability Information

CPE: cpe:/a:cyrus:imapd

Exploitable With

Metasploit (Cyrus IMAPD pop3d popsubfolders USER Buffer Overflow)

Reference Information

CVE: CVE-2006-2502

BID: 18056