- 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.
- Source
- security-advisories@github.com
- NVD status
- Modified
- Products
- netty
CVSS 4.0
- Type
- Secondary
- Base score
- 8.2
- Impact score
- -
- Exploitability score
- -
- Vector string
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity
- HIGH
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
- security-advisories@github.com
- CWE-770
- Hype score
- Not currently trending
CVE-2025-55163 MadeYouReset DDoS Vulnerability in Netty HTTP/2 Protocol Implementations https://t.co/LFTpgRdtMl
@VulmonFeeds
13 Aug 2025
18 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
We just released #netty https://t.co/gmdWgp4hJA and https://t.co/kJLKo99IOk, both contain various bug-fixes but even more important a fix for CVE-2025-55163 that affects http2 and can lead to a DDOS attack in some scenarios. See https://t.co/HsKIpoeIzK https://t.co/RVir5Xjlg8
@normanmaurer
13 Aug 2025
1273 Impressions
9 Retweets
17 Likes
0 Bookmarks
0 Replies
0 Quotes
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