CVE-2025-55163

HIGH

7.5

Description

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.124.Final and 4.2.4.Final, Netty is vulnerable to MadeYouReset DDoS. This is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit - which results in resource exhaustion and distributed denial of service. This issue has been patched in versions 4.1.124.Final and 4.2.4.Final.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published8/13/2025

Last Modified11/4/2025

Sourcenvd

Honeypot Sightings0

Affected Products

netty:netty

Weaknesses (CWE)

CWE-770

References

https://github.com/netty/netty/security/advisories/GHSA-prj3-ccx8-p6x4(security-advisories@github.com)

http://www.openwall.com/lists/oss-security/2025/08/16/1(af854a3a-2127-422b-91ae-364da2661108)

https://www.kb.cert.org/vuls/id/767506(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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