Improper Write Restrictions in Exim Mail Server
CVE-2020-28022

9.8CRITICAL

Key Information:

Vendor

Exim

Status
Exim
Vendor
CVE Published:
6 May 2021

What is CVE-2020-28022?

The Exim Mail Server prior to version 4.94.2 is vulnerable to an improper restriction of write operations, specifically affecting how name=value pairs are processed within the MAIL FROM and RCPT TO commands. This vulnerability can potentially lead to unexpected behavior, impacting email handling and overall server security. For detailed information, refer to the security documentation provided by Exim.

References

https://www.exim.org/static/doc/security/CVE-2020-qualys/...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2020-28022 : Improper Write Restrictions in Exim Mail Server