Mutt < 1.4.1 / 1.5 IMAP Server Format String Vulnerability

Medium Nessus Network Monitor Plugin ID 1298


The remote host is vulnerable to a 'format string' vulnerability


The remote host is running a version of the Mutt email client that contains a format string vulnerability. Due to improper handling of input from IMAP servers, it may be possible for a malicious IMAP server to send a specially crafted message to the mutt client that will cause execution of arbitrary code in the context of the mutt user.


Upgrade to either 1.4.1 or 1.5. Patches/upgrades are available at

Plugin Details

Severity: Medium

ID: 1298

Family: SMTP Clients

Published: 2004/08/20

Modified: 2018/09/16

Dependencies: 1333

Risk Information

Risk Factor: Medium


Base Score: 6.8

Temporal Score: 5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C


Base Score: 5.6

Temporal Score: 4.9


Temporal Vector: CVSS3#E:U/RL:O/RC:C

Reference Information

BID: 2502