Remote Command Execution Vulnerability in Exim Mail Server
CVE-2019-10149

9.8CRITICAL

Key Information:

Vendor: Exim
Status: Exim
Vendor: CVE Published:; 5 June 2019

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 93%🦅 CISA Reported

What is CVE-2019-10149?

A vulnerability exists in Exim versions 4.87 through 4.91, where improper validation of the recipient address in the deliver_message() function can lead to remote command execution. This flaw can be exploited by attackers to execute arbitrary commands on the server, potentially compromising system integrity and security. Users of the affected versions are strongly advised to update their Exim installations to mitigate the risks associated with this vulnerability.

CISA has reported CVE-2019-10149

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2019-10149 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply updates per vendor instructions.

Affected Version(s)

exim 4.92

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.