CVE-2025-55163
unknown
CVSS v3
—
CVSS v4 NEW
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VIR risk
—
Description
Netty affected by MadeYouReset HTTP/2 DDoS vulnerability
Predictions
Exploit likelihood
30%
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-http2 | >=4.2.0.Alpha1,<4.2.4.Final | 4.2.4.Final |
| Maven | io.netty:netty-codec-http2 | <4.1.124.Final | 4.1.124.Final |
| Maven | io.grpc:grpc-netty-shaded | <1.75.0 | 1.75.0 |
References
- https://github.com/netty/netty/security/advisories/GHSA-prj3-ccx8-p6x4
- https://nvd.nist.gov/vuln/detail/CVE-2025-55163
- https://github.com/grpc/grpc-java/commit/6462ef9a11980e168c21d90bbc7245c728fd1a7a
- https://github.com/netty/netty/commit/be53dc3c9acd9af2e20d0c3c07cd77115a594cf1
- https://github.com/netty/netty
- https://www.kb.cert.org/vuls/id/767506
- http://www.openwall.com/lists/oss-security/2025/08/16/1
- https://www.suse.com/security/cve/CVE-2025-55163.html
- https://security-tracker.debian.org/tracker/CVE-2025-55163
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.