Denial of Service attack on windows app using Netty
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.
Summary
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. An unsafe reading of environment file could potentially cause a denial of service in Netty. When loaded on an Windows application, Netty attempts to load a file that does not exist. If an attacker creates such a large file, the Netty application crashes. This vulnerability is fixed in 4.1.115.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| netty | netty | before 4.1.115 | 4.1.115 | Patch available | CNA |
| — | io.netty:netty-common (Maven) | before 4.1.115.Final | 4.1.115.Final | Patch available | GHSA-xq3w-v528-46rv |
- netty Vendornetty Affected before 4.1.115 Fixed in 4.1.115 Patch available CNA
- io.netty:netty-common (Maven) Vendor— Affected before 4.1.115.Final Fixed in 4.1.115.Final Patch available GHSA-xq3w-v528-46rv
Remediation
- Fix · CNA netty (netty) Fixed in 4.1.115
- Fix · GHSA-xq3w-v528-46rv io.netty:netty-common (Maven) Fixed in 4.1.115.Final Advisory →
Red Hat 12 advisories
- RHSA-2025:12511 Released 2025-08-01 · Red Hat rating ImportantStreams for Apache Kafka 3.0.0 release and security update
- Streams for Apache Kafka 3.0.0
- RHSA-2025:9922 Released 2025-06-30 · Red Hat rating ImportantStreams for Apache Kafka 2.9.1 release and security update
- Streams for Apache Kafka 2.9.1
- RHSA-2025:4549 Released 2025-05-06 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.4.22 security update
- Red Hat JBoss EAP 7.4 for RHEL 8 eap7-apache-commons-io-2.16.1-1.redhat_00001.1.el8eap, eap7-hal-console-3.3.26-1.Final_redhat_00001.1.el8eap, eap7-ironjacamar-1.5.19-1.Final_redhat_00001.1.el8eap +27
Show 9 more Red Hat advisories
- RHSA-2025:4550 Released 2025-05-06 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.4.22 security update
- Red Hat JBoss EAP 7.4 for RHEL 9 eap7-apache-commons-io-2.16.1-1.redhat_00001.1.el9eap, eap7-hal-console-3.3.26-1.Final_redhat_00001.1.el9eap, eap7-ironjacamar-1.5.19-1.Final_redhat_00001.1.el9eap +27
- RHSA-2025:4548 Released 2025-05-06 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.4.22 security update
- Red Hat JBoss EAP 7.4 for RHEL 7 Server eap7-apache-commons-io-2.16.1-1.redhat_00001.1.el7eap, eap7-hal-console-3.3.26-1.Final_redhat_00001.1.el7eap, eap7-ironjacamar-1.5.19-1.Final_redhat_00001.1.el7eap +26
- RHSA-2025:4552 Released 2025-05-06 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.4.22 security update
- Red Hat JBoss Enterprise Application Platform 7.4.22 commons-io.commons-io-2.16.1.redhat-00001.jar, io.netty.netty-common-4.1.119.Final-redhat-00004.jar, io.netty.netty-handler-4.1.119.Final-redhat-00004.jar +1
- RHSA-2025:3465 Released 2025-04-01 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.4.21 security update
- Red Hat JBoss EAP 7.4 for RHEL 7 Server eap7-netty-4.1.119-1.Final_redhat_00004.1.el7eap, eap7-netty-all-4.1.119-1.Final_redhat_00004.1.el7eap, eap7-netty-buffer-4.1.119-1.Final_redhat_00004.1.el7eap +29
- Red Hat JBoss EAP 7.4 for RHEL 8 eap7-netty-4.1.119-1.Final_redhat_00004.1.el8eap, eap7-netty-all-4.1.119-1.Final_redhat_00004.1.el8eap, eap7-netty-buffer-4.1.119-1.Final_redhat_00004.1.el8eap +30
- Red Hat JBoss EAP 7.4 for RHEL 9 eap7-netty-4.1.119-1.Final_redhat_00004.1.el9eap, eap7-netty-buffer-4.1.119-1.Final_redhat_00004.1.el9eap, eap7-netty-codec-4.1.119-1.Final_redhat_00004.1.el9eap +29
- RHSA-2025:3467 Released 2025-04-01 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 7.4.21 security update
- Red Hat JBoss Enterprise Application Platform com.fasterxml.jackson.core.jackson-core-2.12.7.SP1-redhat-00001.jar, commons-beanutils.commons-beanutils-1.11.0.redhat-00001.jar, io.netty.netty-common-4.1.124.Final-redhat-00001.jar +3
- RHSA-2025:3358 Released 2025-03-27 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 8.0.6 security update
- Red Hat JBoss Enterprise Application Platform 8
- RHSA-2025:3357 Released 2025-03-27 · Red Hat rating ImportantRed Hat JBoss Enterprise Application Platform 8.0.6 security update
- Red Hat JBoss EAP 8.0 for RHEL 8 eap8-eap-product-conf-parent-800.6.1-1.GA_redhat_00001.1.el8eap, eap8-eap-product-conf-wildfly-ee-feature-pack-800.6.1-1.GA_redhat_00001.1.el8eap, eap8-netty-4.1.119-1.Final_redhat_00002.1.el8eap +21
- Red Hat JBoss EAP 8.0 for RHEL 9 eap8-eap-product-conf-parent-800.6.1-1.GA_redhat_00001.1.el9eap, eap8-eap-product-conf-wildfly-ee-feature-pack-800.6.1-1.GA_redhat_00001.1.el9eap, eap8-netty-4.1.119-1.Final_redhat_00002.1.el9eap +21
- RHSA-2025:2416 Released 2025-03-05 · Red Hat rating ImportantStreams for Apache Kafka 2.9.0 release and security update
- Streams for Apache Kafka 2.9.0
- RHSA-2025:0900 Released 2025-02-05 · Red Hat rating ModerateRed Hat build of Quarkus 3.15.3 release and security update
- Red Hat build of Quarkus 3.15.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat JBoss EAP 7.4 for RHEL 7 Server | Fixed | RHSA-2025:3465, RHSA-2025:4548 |
| Red Hat JBoss EAP 7.4 for RHEL 8 | Fixed | RHSA-2025:3465, RHSA-2025:4549 |
| Red Hat JBoss EAP 7.4 for RHEL 9 | Fixed | RHSA-2025:3465, RHSA-2025:4550 |
| Red Hat JBoss EAP 8.0 for RHEL 8 | Fixed | RHSA-2025:3357 |
| Red Hat JBoss EAP 8.0 for RHEL 9 | Fixed | RHSA-2025:3357 |
| Red Hat JBoss Enterprise Application Platform | Fixed | RHSA-2025:3467 |
| Red Hat JBoss Enterprise Application Platform 7.4.22 | Fixed | RHSA-2025:4552 |
| Red Hat JBoss Enterprise Application Platform 8 | Fixed | RHSA-2025:3358 |
| Red Hat build of Quarkus 3.15.3 | Fixed | RHSA-2025:0900 |
| Streams for Apache Kafka 2.9.0 | Fixed | RHSA-2025:2416 |
| Streams for Apache Kafka 2.9.1 | Fixed | RHSA-2025:9922 |
| Streams for Apache Kafka 3.0.0 | Fixed | RHSA-2025:12511 |
Not affected: 11 products
- A-MQ Clients 2
- Logging Subsystem for Red Hat OpenShift
- Red Hat Build of Keycloak
- Red Hat Fuse 7
- Red Hat Integration Camel K 1
- Red Hat JBoss Data Grid 7
- Red Hat JBoss Enterprise Application Platform
- Red Hat JBoss Enterprise Application Platform 7.4.22
- Red Hat JBoss Enterprise Application Platform Expansion Pack
- Red Hat Process Automation 7
- Red Hat Single Sign-On 7
Timeline
- 2026-10-02 Threatist record created from CVE-2024-47535
- 2026-10-03 Alias added: GHSA-xq3w-v528-46rv
References
More Netty vulnerabilities
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2026-30861 Netty: HTTP/1.0 TE+CL Coexistence Bypasses Smuggling Sanitization CVSS 3.1CRITICAL 9.8
- TI-2026-30864 Netty: HttpClientCodec response desynchronization CVSS 3.1CRITICAL 9.1
- TI-2026-30859 Netty: DNS Codec Input Validation Bypass in Netty (Encoder + Decoder) CVSS 3.1CRITICAL 9.1
- TI-2026-40973 Netty: Missing CertificateID Validation in OCSP Response Allows Replay Attacks CVSS 3.1CRITICAL 9.1
- TI-2026-40972 Uncontrolled resource consumption in netty CVSS 3.1HIGH 7.5
Sources
- CVE-2024-47535 · CVE Program
- CVE-2024-47535 · NVD
- FIRST EPSS
- GHSA-xq3w-v528-46rv · GitHub Advisory Database · CC BY 4.0
- CVE-2024-47535 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences