Command Injection in Netty - CVE-2025-59419
Published: October 15, 2025
Vulnerability identifier: #VU117297
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-59419
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Netty project
Affected software:
Netty
Netty
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary SMTP commands.
The vulnerability exists due to insufficient input validation in the SMTP codec. A remote attacker can pass specially crafted data to the application and forge arbitrary emails from the trusted server.
How to mitigate CVE-2025-59419
Install updates from vendor's website.