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CVE-2025-24970: SslHandler doesn't correctly validate packets which can lead to native crash when using native SSLEngine

7.5 CVSS

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.

Classification

CVE ID: CVE-2025-24970

CVSS Base Severity: HIGH

CVSS Base Score: 7.5

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

Affected Products

Vendor: netty

Product: netty

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 11.88% (scored less or equal to compared to others)

EPSS Date: 2025-03-11 (when was this score calculated)

References

https://github.com/netty/netty/security/advisories/GHSA-4g8c-wm8x-jfhw
https://github.com/netty/netty/commit/87f40725155b2f89adfde68c7732f97c153676c4

Timeline