CVE-2025-59419
unknown
CVSS v3
—
CVSS v4 NEW
—
VIR risk
—
Description
Netty has SMTP Command Injection Vulnerability that Allows Email Forgery
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1:4.1.48-10+deb13u1 |
| sid | Fixed | 1:4.1.48-11 |
| forky | Fixed | 1:4.1.48-11 |
| bullseye | Fixed | 1:4.1.48-4+deb11u3 |
| bookworm | Fixed | 1:4.1.48-7+deb12u2 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | io.netty:netty-codec-smtp | >=4.2.0.Alpha1,<4.2.7.Final | 4.2.7.Final |
| Maven | io.netty:netty-codec-smtp | <4.1.128.Final | 4.1.128.Final |
References
- https://github.com/netty/netty/security/advisories/GHSA-jq43-27x9-3v86
- https://nvd.nist.gov/vuln/detail/CVE-2025-59419
- https://github.com/netty/netty/commit/1782e8c2060a244c4d4e6f9d9112d5517ca05120
- https://github.com/netty/netty/commit/2b3fddd3339cde1601f622b9ce5e54c39f24c3f9
- https://gist.github.com/DepthFirstDisclosures/ddacca28cb94b48fa8ab998cef59ed8c
- https://github.com/netty/netty
- https://www.depthfirst.com/post/our-ai-agent-found-a-netty-zero-day-that-bypasses-email-authentication-the-story-of-cve-2025-59419
- https://www.suse.com/security/cve/CVE-2025-59419.html
- https://security-tracker.debian.org/tracker/CVE-2025-59419
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.