CVE-2020-28009

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

Exim 4 before 4.94.2 allows Integer Overflow to Buffer Overflow because get_stdinput allows unbounded reads that are accompanied by unbounded increases in a certain size variable. NOTE: exploitation may be impractical because of the execution time needed to overflow (multiple days).

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-190

Affected software

No affected versions have been published.

Timeline

Published
May 6, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

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CVE-2020-28009: High severity, CVSS 7.8 | Vulnix