Login.

Vulnerability details

5.5/10
CVSS 4.0
CVE-2025-59419
resolved Published 2025-10-15 Updated 2026-10-19
NVD MITRE OpenCVE
Vulnerability Data from Dependency-Track
Affected versions
Score
5.5 CVSS 4.0 NVD 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:P
Description
Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.128.Final and 4.2.7.Final, the SMTP codec in Netty contains an SMTP command injection vulnerability due to insufficient input validation for Carriage Return (\r) and Line Feed (\n) characters in user-supplied parameters. The vulnerability exists in io.netty.handler.codec.smtp.DefaultSmtpRequest, where parameters are directly concatenated into the SMTP command string without sanitization. When methods such as SmtpRequests.rcpt(recipient) are called with a malicious string containing CRLF sequences, attackers can inject arbitrary SMTP commands. Because the injected commands are sent from the server's trusted IP address, resulting emails will likely pass SPF and DKIM authentication checks, making them appear legitimate. This allows remote attackers who can control SMTP command parameters (such as email recipients) to forge arbitrary emails from the trusted server, potentially impersonating executives and forging high-stakes corporate communications. This issue has been patched in versions 4.1.129.Final and 4.2.8.Final. No known workarounds exist.
Same vulnerability as
GHSA-jq43-27x9-3v86 resolved according to EUVD-2025-34685
Analysis Read only
The analysis can only be edited by the BlueMind security teams: log in.

CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation. CVE data may be incomplete, delayed, or inaccurate. This website and all information provided are offered on an “as is” basis without warranties of any kind. This site is not affiliated with, endorsed by, or sponsored by the CVE Program or The MITRE Corporation.

This site uses data from the National Vulnerability Database (NVD), obtained through Dependency-Track, but is not endorsed or certified by the NVD or the National Institute of Standards and Technology (NIST). NVD data may be incomplete, delayed, or inaccurate.

CVSS (Common Vulnerability Scoring System) is owned and managed by FIRST.Org, Inc. and used by permission. The links on CVSS vectors open the FIRST CVSS calculators (CVSS 3.0, 3.1 and 4.0), or the NVD calculator for CVSS 2.0. This site is not affiliated with, endorsed by, or sponsored by FIRST.

GitHub is a trademark of GitHub, Inc. GHSA identifiers and advisory data come from the GitHub Advisory Database, licensed under CC-BY 4.0. GHSA data may be incomplete, delayed, or inaccurate. This site is not affiliated with, endorsed by, or sponsored by GitHub, Inc.

Source of the EUVD data: European Vulnerability Database (EUVD), © European Union Agency for Cybersecurity (ENISA), reused with acknowledgement of the source as provided by the ENISA legal notice and IPR policy. Changes: CVEManager does not display the EUVD records as such; it uses their aliases to link the CVE and GHSA identifiers designating the same vulnerability. EUVD data may be incomplete, delayed, or inaccurate. This site is not affiliated with, endorsed by, or sponsored by ENISA or the European Union.