CVE-2025-24970

Name: CVE-2025-24970
Creator: NVD / NIST
Published: 2025-02-10T22:15:38.057+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.97%

Last modified Jun 17, 2026

CVE-2025-24970 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 1.97% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.97%

77.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Netty	Netty	>= 4.1.91, < 4.1.118
Netapp	Active Iq Unified Manager	All versions
Netapp	Oncommand Insight	All versions

References

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
https://www.vicarius.io/vsociety/posts/cve-2025-24970-netty-vulnerability-detectionExploit, Third Party Advisory
https://www.vicarius.io/vsociety/posts/cve-2025-24970-netty-vulnerability-mitigationExploit, Mitigation, Third Party Advisory
https://github.com/netty/netty/security/advisories/GHSA-4g8c-wm8x-jfhwVendor Advisory

Timeline

Published: Feb 10, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-24970?

How severe is CVE-2025-24970?

CVE-2025-24970 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.97% probability of exploitation in the next 30 days.

How do I fix CVE-2025-24970?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-24970?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST