CVE catalog
CVE-2025-25193
netty: CVE-2025-25193
- Severity
- Medium · CVSS 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.39% · Oct 25, 2026
Netty, an asynchronous, event-driven network application framework, has a vulnerability in versions up to and including 4.1.118.Final. An unsafe reading of environment file could potentially cause a denial of service in Netty. When loaded on an Windows application, Netty attempts to load a file that does not exist. If an attacker creates such a large file, the Netty application crash. A similar issue was previously reported as CVE-2024-47535. This issue was fixed, but the fix was incomplete in that null-bytes were not counted against the input limit. Commit d1fbda62d3a47835d3fb35db8bd42ecc205a5386 contains an updated fix.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | netty | sid | 1:4.1.48-16 | not affected |
| Debian | netty | forky | 1:4.1.48-16 | not affected |
| Debian | netty | trixie | 1:4.1.48-10+deb13u1 | not affected |
| Debian | netty | trixie-security | 1:4.1.48-10+deb13u1 | not affected |
| Debian | netty | bookworm | 1:4.1.48-7+deb12u2 | not affected |
| Debian | netty | bookworm-security | 1:4.1.48-7+deb12u2 | not affected |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | netty | source | sid | Not affected | unimportant | Not reported | Not reported |
| Debian | netty | source | forky | Not affected | unimportant | Not reported | Not reported |
| Debian | netty | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | netty | source | bookworm | Not affected | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libnetty-java]Not affected
Source package: [netty]
Details (4)
1:4.1.48-7+deb12u2· all · bookwormNot affected
dsa · netty · debian · bookworm
1:4.1.48-7+deb12u2· all · bookwormNot affected
dsa · netty · debian · bookworm
1:4.1.48-7+deb12u2· all · bookworm-securityNot affected
dsa · netty · debian · bookworm
1:4.1.48-7+deb12u2· all · bookworm-securityNot affected
dsa · netty · debian · bookworm
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2025_0590-1.json]
- [https://security-tracker.debian.org/tracker/CVE-2025-25193]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-25193.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-0638.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]