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Fencer Vulns
high 7.5

CVE-2025-24970 json

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

published 2025-02-10 20 mo ago modified 2026-09-10 1 mo ago also EUVD-2025-3996 , GHSA-4g8c-wm8x-jfhw

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven io.netty:netty-handler 4.1.118.Final
  • io.netty netty-handler 4.1.118.Final
  • netty netty 4.1.118.Final
  • eap7-wildfly jboss enterprise application platform 7.4 7.4.22-2.GA_redhat_00001.1.el9eap
  • eap7-weld-ejb jboss enterprise application platform 7.4 3.1.11-1.Final_redhat_00001.1.el9eap
  • eap7-weld-jta jboss enterprise application platform 7.4 3.1.11-1.Final_redhat_00001.1.el9eap
  • eap7-weld-web jboss enterprise application platform 7.4 3.1.11-1.Final_redhat_00001.1.el9eap
  • eap7-weld-core jboss enterprise application platform 7.4 3.1.11-1.Final_redhat_00001.1.el9eap
  • eap7-hal-console jboss enterprise application platform 7.4 3.3.26-1.Final_redhat_00001.1.el9eap
  • eap7-ironjacamar jboss enterprise application platform 7.4 1.5.19-1.Final_redhat_00001.1.el9eap
  • eap7-weld-core-jsf jboss enterprise application platform 7.4 3.1.11-1.Final_redhat_00001.1.el9eap

red hat advisories RHSA-2025:4550RHSA-2025:4549RHSA-2025:4548RHSA-2025:3357

  • netty-tcnative SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES for SAP 15 SP3 +11 more 2.0.70-150200.3.25.1
  • netty SLE Module for Package Hub 15 SP6, openSUSE Leap 15.6 4.1.118-150200.4.29.2

suse advisories SUSE-SU-2025:0590-1

  • netty openSUSE Tumbleweed 4.1.118-1.1

opensuse advisories openSUSE-SU-2025:14765-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-24970 updated cvss 7.5

io.netty:netty-handler: SslHandler doesn't correctly validate packets which can lead to native crash when using native SSLEngine

  • Red Hat Cryostat 3 netty-handler Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/elasticsearch6-rhel8 Red Hat OpenShift Serverless netty-handler Red Hat AMQ Broker 7 netty-handler
    affected: workaround, no fix available
  • Red Hat AMQ Clients netty-handler
    affected: workaround, no fix planned “Will not fix”
  • Red Hat build of Apicurio Registry 2 netty-handler
    affected: workaround, no fix available
  • Red Hat build of Debezium 2 netty-handler Red Hat build of OptaPlanner 8 netty-handler
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Fuse 7 netty-handler Red Hat Process Automation 7 netty-handler Red Hat Single Sign-On 7 netty-handler
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat HawtIO HawtIO 4.2.0
    fixed: vendor fix RHSA-2025:8761
  • Red Hat Build of Apache Camel 4.8 for Quarkus 3.15
    fixed: vendor fix RHSA-2025:2067
  • Red Hat build of Apache Camel 4.8.5 for Spring Boot
    fixed: vendor fix RHSA-2025:3543
show 15 more
  • Red Hat build of Quarkus 3.8.6.SP3
    fixed: vendor fix RHSA-2025:1884
  • Red Hat build of Quarkus 3.15.3.SP1
    fixed: vendor fix RHSA-2025:1885
  • Red Hat build of Quarkus 3.20.1.redhat netty-handler 4.1.119.Final-redhat-00005
    fixed: vendor fix RHSA-2025:8258
  • Red Hat Data Grid
    fixed: vendor fix RHSA-2025:2663
  • Red Hat JBoss EAP 7.4 for RHEL 7 Server eap7-wildfly 7.4.22-2.GA_redhat_00001.1.el7eap, eap7-netty 4.1.119-1.Final_redhat_00004.1.el7eap, eap7-weld-ejb 3.1.11-1.Final_redhat_00001.1.el7eap, eap7-weld-jta 3.1.11-1.Final_redhat_00001.1.el7eap, eap7-weld-web 3.1.11-1.Final_redhat_00001.1.el7eap, eap7-weld-core 3.1.11-1.Final_redhat_00001.1.el7eap, +55 more
    fixed: vendor fix RHSA-2025:4548
  • Red Hat JBoss EAP 7.4 for RHEL 8 eap7-wildfly 7.4.22-2.GA_redhat_00001.1.el8eap, eap7-netty 4.1.119-1.Final_redhat_00004.1.el8eap, eap7-weld-ejb 3.1.11-1.Final_redhat_00001.1.el8eap, eap7-weld-jta 3.1.11-1.Final_redhat_00001.1.el8eap, eap7-weld-web 3.1.11-1.Final_redhat_00001.1.el8eap, eap7-weld-core 3.1.11-1.Final_redhat_00001.1.el8eap, +57 more Red Hat JBoss EAP 7.4 for RHEL 9 eap7-wildfly 7.4.22-2.GA_redhat_00001.1.el9eap, eap7-netty 4.1.119-1.Final_redhat_00004.1.el9eap, eap7-weld-ejb 3.1.11-1.Final_redhat_00001.1.el9eap, eap7-weld-jta 3.1.11-1.Final_redhat_00001.1.el9eap, eap7-weld-web 3.1.11-1.Final_redhat_00001.1.el9eap, eap7-weld-core 3.1.11-1.Final_redhat_00001.1.el9eap, +56 more
    fixed: vendor fix RHSA-2025:3465
  • Red Hat JBoss EAP 8.0 for RHEL 8 eap8-slf4j 2.0.16-2.redhat_00003.1.el8eap, eap8-slf4j-api 2.0.16-2.redhat_00003.1.el8eap, eap8-wildfly 8.0.6-15.GA_redhat_00009.1.el8eap, eap8-netty 4.1.119-1.Final_redhat_00002.1.el8eap, eap8-netty-codec 4.1.119-1.Final_redhat_00002.1.el8eap, eap8-wildfly-modules 8.0.6-15.GA_redhat_00009.1.el8eap, +18 more Red Hat JBoss EAP 8.0 for RHEL 9 eap8-slf4j 2.0.16-2.redhat_00003.1.el9eap, eap8-slf4j-api 2.0.16-2.redhat_00003.1.el9eap, eap8-wildfly 8.0.6-15.GA_redhat_00009.1.el9eap, eap8-netty 4.1.119-1.Final_redhat_00002.1.el9eap, eap8-netty-codec 4.1.119-1.Final_redhat_00002.1.el9eap, eap8-wildfly-modules 8.0.6-15.GA_redhat_00009.1.el9eap, +18 more
    fixed: vendor fix RHSA-2025:3357
  • Red Hat JBoss Enterprise Application Platform netty-handler 4.1.124.Final-redhat-00001
    fixed: vendor fix RHSA-2025:3467
  • Red Hat JBoss Enterprise Application Platform 7.4.22 netty-handler 4.1.119.Final-redhat-00004
    fixed: vendor fix RHSA-2025:4552
  • Red Hat JBoss Enterprise Application Platform 8
    fixed: vendor fix RHSA-2025:3358
  • Red Hat OpenShift AI 2.18 rhoai v2.18.0-1740989471
    fixed: vendor fix RHSA-2025:2588
  • Red Hat RHINT Camel-K 1.10.10
    fixed: vendor fix RHSA-2025:3540
  • Red Hat Streams for Apache Kafka 2.9.1
    fixed: vendor fix RHSA-2025:9922
  • Red Hat Streams for Apache Kafka 3.0.0
    fixed: vendor fix RHSA-2025:12511
  • Red Hat A-MQ Clients 2 netty-handler Red Hat build of Apicurio Registry 3 netty-handler Red Hat build of Quarkus 3.20.1.redhat jna 5.8.0, lit 3.2.1, bson 5.3.1, db2 1.20.6, h2 2.3.230, y18n 5.0.8, +1016 more Red Hat JBoss Enterprise Application Platform pom.xml, c3 0.6.0, c3 0.7.1, d3 5.9.2, fs 2.1.2, ip 2.0.0, +1551 more Red Hat JBoss Enterprise Application Platform 7 netty-handler Red Hat JBoss Enterprise Application Platform 7.4.22 pom.xml, c3 0.6.0, c3 0.7.1, d3 5.9.2, fs 2.1.2, ip 2.0.0, +1559 more
    +3 more products
    Red Hat JBoss Enterprise Application Platform 8 netty-handler Red Hat JBoss Enterprise Application Platform Expansion Pack netty-handler Red Hat OpenShift AI 2.18 rhoai v2.18.0-1740989446, rhoai v2.18.0-1740989457, rhoai v2.18.0-1740989612, rhoai v2.18.0-1740989646, rhoai v2.18.0-1740989677, rhoai v2.18.0-1740989687, +18 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

2.19% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/netty/netty/security/advisories/GHSA-4g8c-wm8x-jfhw referenced PoC, tagged "exploit" by a source, unverified
  • vicarius.io https://www.vicarius.io/vsociety/posts/cve-2025-24970-netty-vulnerability-detection referenced PoC, tagged "exploit" by a source, unverified
  • vicarius.io https://www.vicarius.io/vsociety/posts/cve-2025-24970-netty-vulnerability-mitigation referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven io.netty:netty-handler
>=4.1.91.Final, <4.1.118.Final
4.1.118.Final

Affected products

  • netty netty

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.