CVE-2026-44250

Name: CVE-2026-44250
Creator: NVD / NIST
Published: 2026-06-11T22:16:56.857+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2026-44250 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Netty is a network application framework for development of protocol servers and clients. In netty-codec-redis prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can cause DoS by sending a crafted Redis payload with deeply nested arrays. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

Netty is a network application framework for development of protocol servers and clients. In netty-codec-redis prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can cause DoS by sending a crafted Redis payload with deeply nested arrays. This forces the server to allocate a massive number of state objects and collections, leading to memory exhaustion and an OutOfMemoryError. Versions 4.1.135.Final and 4.2.15.Final patch the issue.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.34%

25.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Netty	Netty	< 4.1.135
Netty	Netty	>= 4.2.0, < 4.2.15

References

https://github.com/netty/netty/releases/tag/netty-4.1.135.FinalRelease Notes
https://github.com/netty/netty/releases/tag/netty-4.2.15.FinalRelease Notes
https://github.com/netty/netty/security/advisories/GHSA-3244-j874-rhc2Vendor Advisory

Timeline

Published: Jun 11, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-44250?

How severe is CVE-2026-44250?

CVE-2026-44250 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2026-44250?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-44250?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST