CVE-2019-10149

Exim Mail Transfer Agent (MTA) — Exim Mail Transfer Agent (MTA) Improper Input Validation
🔥 CVSS 3.1  9.8 / 10 — CRITICAL 🔴 CISA Known Exploited Vulnerability

Overview

Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.

https://nvd.nist.gov/vuln/detail/CVE-2019-10149

Key Details

PropertyValue
CVE ID CVE-2019-10149
Vendor / Product Exim — Mail Transfer Agent (MTA)
NVD Published2019-06-05
NVD Last Modified2025-11-06
CVSS 3.1 Score9.8
CVSS 3.1 VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SeverityCRITICAL
CWE CWE-78
CISA KEV Added2022-01-10
CISA KEV Deadline2022-07-10
Known Ransomware Use No

CVSS 3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Required Action

CISA BOD 22-01 Deadline: 2022-07-10. Apply updates per vendor instructions.

Timeline

DateEvent
2022-01-10Added to CISA Known Exploited Vulnerabilities catalog
2022-07-10CISA BOD 22-01 remediation deadline

References

ResourceType
NVD — CVE-2019-10149 Vulnerability Database
CISA KEV Catalog Entry US Government