Exim 4.92.x < 4.92.3 Heap Buffer Overflow

critical Nessus Plugin ID 129470
New! Plugin Severity Now Using CVSS v3

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The remote mail server is potentially affected by a remote code execution vulnerability.


According to its banner, the version of Exim running on the remote host is 4.92.x prior to 4.92.3. It is, therefore, potentially affected by a remote code execution vulnerability allowing unauthenticated, remote attackers to execute arbitrary code via a heap buffer overflow in string_vformat.


Upgrade to Exim 4.92.3 or later.

See Also


Plugin Details

Severity: Critical

ID: 129470

File Name: exim_4_92_3.nasl

Version: 1.6

Type: remote

Published: 9/30/2019

Updated: 4/10/2020

Dependencies: smtpserver_detect.nasl

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2019-16928


Risk Factor: High

Score: 7.4


Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

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


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 9/27/2019

Vulnerability Publication Date: 9/27/2019

Reference Information

CVE: CVE-2019-16928