CVE-2020-28010

Published: May 6, 2021Modified: Jun 17, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

Exim 4 before 4.94.2 allows Out-of-bounds Write because the main function, while setuid root, copies the current working directory pathname into a buffer that is too small (on some common platforms).

Affected (1)

Products: Exim: Exim

Exim

1 product

Exim

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Exim Exim	From 4.00 to 4.94.2

Related CWEs

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (4)

http://www.openwall.com/lists/oss-security/2021/07/22/7

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28010-SLCWD.txt

Source: cve@mitre.org

Vendor Advisory

http://www.openwall.com/lists/oss-security/2021/07/22/7

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28010-SLCWD.txt

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.