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CVE-2020-28020

Critical

Description

Exim 4 before 4.92 allows Integer Overflow to Buffer Overflow, in which an unauthenticated remote attacker can execute arbitrary code by leveraging the mishandling of continuation lines during header-length restriction.

SeverityCritical
CVSS9.8
Exploit probability—
ProductExim
PublishedMay 6, 2021
First seenMay 6, 2021

How to fix

Update
  • exim exim4.92 or later

Affected products

ProductAffected versionsFixed in
exim exim4.00 ≤ v < 4.924.92

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