ACTIVELY EXPLOITED
CVE-2019-10149: Exim Mail Transfer Agent (MTA) Improper Input Validation
| Vendor | Exim |
|---|---|
| Product | Mail Transfer Agent (MTA) |
| Actively exploited | Yes |
| Added to CISA KEV | 10 Jan 2022 |
| CISA federal deadline | 10 Jul 2022 |
| Weakness (CWE) | CWE-78 |
Required action (CISA's text)
Apply updates per vendor instructions.
Description (NVD)
Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.
SOURCES
Other Exim flaws
- CVE-2010-4345: Exim Privilege Escalation Vulnerability
- CVE-2010-4344: Exim Heap-Based Buffer Overflow Vulnerability
- CVE-2019-16928: Exim Out-of-bounds Write Vulnerability
- CVE-2018-6789: Exim Buffer Overflow Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.