CVE-2025-24970

Public Exploit
SslHandler doesn't correctly validate packets which can lead to native crash when using native SSLEngine

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.12%
Affected: netty netty
Published at:
Updated at:

References

Link Tags
https://github.com/netty/netty/security/advisories/GHSA-4g8c-wm8x-jfhw
https://github.com/netty/netty/commit/87f40725155b2f89adfde68c7732f97c153676c4
https://security.netapp.com/advisory/ntap-20250221-0005/
https://www.vicarius.io/vsociety/posts/cve-2025-24970-netty-vulnerability-detection
https://www.vicarius.io/vsociety/posts/cve-2025-24970-netty-vulnerability-mitigation

Frequently Asked Questions

What is the severity of CVE-2025-24970?
CVE-2025-24970 has been scored as a high severity vulnerability.
How to fix CVE-2025-24970?
To fix CVE-2025-24970, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-24970 being actively exploited in the wild?
It is possible that CVE-2025-24970 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-24970?
CVE-2025-24970 affects netty netty.
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