Home/CVE/Netty, an asynchronous, event-driven network application framework, has a vulnerability starting in version 4.1.91.Final
CVE

CVE-2025-24970

Netty, an asynchronous, event-driven network application framework, has a vulnerability starting in version 4.1.91.Final

Netty, an asynchronous, event-driven network application framework, has a vulnerability starting in version 4.1.91.Final and prior to version 4.1.118.Final. When a special crafted packet is received via SslHandler it doesn't correctly handle validation of such a packet in all cases which can lead to a native crash. Version 4.1.118.Final contains a patch.

As workaround its possible to either disable the usage of the native SSLEngine or change the code manually.

HIGH · CVSS 7.5 EPSS 0.00953
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

3
netty>= 4.1.91 and < 4.1.118
netapp active iq unified managerall versions
netapp oncommand insightall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven io.netty:netty-handler HIGH fixed in 4.1.118.Final
⚠

Public Exploits & PoCs

2
pocwww.vicarius.io · cve-2025-24970-netty-vulnerability-detectionwww.vicarius.io
pocwww.vicarius.io · cve-2025-24970-netty-vulnerability-mitigationwww.vicarius.io
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Feb 2025 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

22
rhsaRHSA-2025:12511Low
rhsaRHSA-2025:3467Important
rhsaRHSA-2025:3465Important
rhsaRHSA-2025:9922Important
rhsaRHSA-2025:3543Important
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/netty/netty/commit/87f40725155b2f89adfde68c7732f97c153676c4Patch
https://github.com/netty/netty/security/advisories/GHSA-4g8c-wm8x-jfhwVendor Advisory
https://security.netapp.com/advisory/ntap-20250221-0005/Third Party Advisory
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