CVE-2020-28022

CRITICAL

Exim 4.00-4.94.1 - Out-of-bounds Write via MAIL FROM and RCPT TO Commands

Title source: llm
STIX 2.1

Description

Exim 4 before 4.94.2 has Improper Restriction of Write Operations within the Bounds of a Memory Buffer. This occurs when processing name=value pairs within MAIL FROM and RCPT TO commands.

References (1)

Core 1

Scores

CVSS v3 9.8
EPSS 0.0302
EPSS Percentile 85.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (1)
exim/exim 4.00 - 4.94.2
Published May 06, 2021
Tracked Since Feb 18, 2026