CVE-2019-10149

CRITICAL9.8

CISA KEV

Published 2019-06-05 · Updated 2026-06-17 · Source secalert@redhat.com

Summary

CVE-2019-10149 is a critical-severity (CVSS 9.8) vulnerability in Exim Mail Transfer Agent (MTA). CISA added it to the Known Exploited Vulnerabilities catalog on January 10, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by July 10, 2022. CISA does not currently list it as used in ransomware campaigns. Exim has 5 vulnerabilities in the KEV catalog, 1 of them linked to ransomware.

All 5 known-exploited Exim vulnerabilities →

Description

A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.

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

CWE-78CWE-78

CISA Known-Exploited Vulnerability

Product: Exim — Mail Transfer Agent (MTA)

Name: Exim Mail Transfer Agent (MTA) Improper Input Validation

Date added: 2022-01-10 · Due: 2022-07-10

Required action: Apply updates per vendor instructions.

References

View on NVD

More exploited Exim vulnerabilities

Most recently added to CISA KEV

CVE-2010-4345
Exim — Exim Privilege Escalation Vulnerability
added 2022-03-25
CVE-2010-4344
Exim — Exim Heap-Based Buffer Overflow Vulnerability
added 2022-03-25
CVE-2019-16928
Exim Internet Mailer — Exim Out-of-bounds Write Vulnerability
added 2022-03-03
CVE-2018-6789
RANSOMWARE
Exim — Exim Buffer Overflow Vulnerability
added 2021-11-03

View all →

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