CVE-2025-24970

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.

CVSS v3.1

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

CVSS v3.1

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

EPSS

2.15% chance of exploitation in the next 30 days, 81th percentile

Published

2025-02-10

Updated

2025-04-16

Proof-of-concept exploits (2)

• https://www.vicarius.io/vsociety/posts/cve-2025-24970-netty-vulnerability-detection
• https://www.vicarius.io/vsociety/posts/cve-2025-24970-netty-vulnerability-mitigation

References

• CVE Record
• NVD entry

Related

• CVE-2025-24968
• CVE-2025-24971
• CVE-2025-24967
• CVE-2025-24975
• CVE-2025-24966
• CVE-2025-2498