Exim < 4.93 Privilege Escalation vulnerability

high Nessus Plugin ID 135311
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The remote mail server is potentially affected by a privilege escalation vulnerability.


According to its banner, the version of Exim running on the remote host is prior to 4.93. It is, therefore, potentially affected by a privilege escalation vulnerability. A flaw exists in the UNIX symbolic link that could allow an attacker to execute to escalate from the mail user to root.


Upgrade to Exim 4.93 or later.

See Also




Plugin Details

Severity: High

ID: 135311

File Name: exim_4_93.nasl

Version: 1.4

Type: remote

Published: 4/10/2020

Updated: 6/3/2021

Dependencies: smtpserver_detect.nasl

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2020-8015


Risk Factor: Medium

Score: 5.9


Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

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


Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Vulnerability Information

CPE: cpe:/a:exim:exim

Required KB Items: Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 4/10/2020

Vulnerability Publication Date: 4/1/2020

Reference Information

CVE: CVE-2020-8015

IAVA: 2020-A-0131-S