How severe is CVE-2014-0193?

No CVSS score has been assigned to CVE-2014-0193 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2014-0193?

CVE-2014-0193 affects the following packages: io.netty:netty (Maven), io.netty:netty (Maven), io.netty:netty (Maven), io.netty:netty (Maven), io.netty:netty (Maven), io.netty:netty-all (Maven). Ecosystems affected: Maven.

How do I fix CVE-2014-0193?

Update io.netty:netty to 3.6.9.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2014-0193 is resolved across your whole dependency graph.

How do I detect CVE-2014-0193 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.netty:netty, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2014-0193 if there is no patch (or I can't update yet)?

Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Is CVE-2014-0193 actively exploited in the wild?

No public exploit code has been indexed for CVE-2014-0193 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2014-0193?

CVE-2014-0193 has an EPSS (Exploit Prediction Scoring System) score of 4.3%, placing it in the 91th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2014-0193?

CVE-2014-0193 is classified as CWE-399 (CWE-399). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2014-0193 published, and has it been updated?

CVE-2014-0193 was published on May 13, 2022 and was last updated on December 8, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕ Maven

Not in CISA KEV

CVE-2014-0193 — netty

Fix: netty/netty@8599ab5

CVE-2014-0193 is a CWE-399 vulnerability in io.netty:netty. A fix is available for io.netty:netty — see the affected versions and patch details below.

Netty denial of service vulnerability

Published

May 13, 2022

Updated

Dec 8, 2024

Affected

6 pkgs

Patched

6 / 6

Exploits

None indexed

Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

4.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs91th percentile — riskier than 91% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

6 pkgs affected

☕io.netty:netty☕io.netty:netty☕io.netty:netty☕io.netty:netty☕io.netty:netty☕io.netty:netty-all

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

WebSocket08FrameDecoder in Netty 3.6.x before 3.6.9, 3.7.x before 3.7.1, 3.8.x before 3.8.2, 3.9.x before 3.9.1, and 4.0.x before 4.0.19 allows remote attackers to cause a denial of service (memory consumption) via a TextWebSocketFrame followed by a long stream of ContinuationWebSocketFrames.

Affected Packages

6 total 6 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`io.netty:netty`	≥ 3.6.0.Beta1&&< 3.6.9.Final	3.6.9.Final`io.netty:netty:3.6.9.Final`
☕Maven	`io.netty:netty`	≥ 3.7.0.Final&&< 3.7.1.Final	3.7.1.Final`io.netty:netty:3.7.1.Final`
☕Maven	`io.netty:netty`	≥ 3.8.0.Final&&< 3.8.2.Final	3.8.2.Final`io.netty:netty:3.8.2.Final`
☕Maven	`io.netty:netty`	≥ 3.9.0.Final&&< 3.9.1.Final	3.9.1.Final`io.netty:netty:3.9.1.Final`
☕Maven	`io.netty:netty`	≥ 4.0.0.Alpha1&&< 4.0.19.Final	4.0.19.Final`io.netty:netty:4.0.19.Final`
☕Maven	`io.netty:netty-all`	≥ 4.0.0.Alpha1&&< 4.0.19.Final	4.0.19.Final`io.netty:netty-all:4.0.19.Final`

Affected Products

1 product · 32 configurations

Application

nettynetty

32 versions

3.6.03.6.13.6.23.6.33.6.43.6.53.6.63.6.73.6.83.7.03.8.03.8.1

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.netty:netty, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update io.netty:netty to 3.6.9.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2014-0193 is resolved across your whole dependency graph.
Workarounds
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatLow

Product	Fixed in	Advisory
Red Hat JBoss A-MQ 6.1	see advisory	RHSA-2014:1351
Red Hat JBoss BPMS 6.0	`netty`	RHSA-2015:0234
Red Hat JBoss BRMS 6.0	`netty`	RHSA-2014:0818
Red Hat JBoss BRMS 6.0	`netty`	RHSA-2015:0235
Red Hat JBoss Data Virtualization 6.0	`netty`	RHSA-2015:0765
Red Hat JBoss Data Virtualization 6.1	see advisory	RHSA-2015:0675
Red Hat JBoss Enterprise Application Platform 6.3	`netty`	RHSA-2014:1021
Red Hat JBoss Enterprise Application Platform 6 for RHEL 5	`apache-commons-beanutils-eap6-0:1.8.3-7.redhat_6.1.ep6.el5`	RHSA-2014:1019

Frequently Asked Questions

`WebSocket08FrameDecoder` in Netty 3.6.x before 3.6.9, 3.7.x before 3.7.1, 3.8.x before 3.8.2, 3.9.x before 3.9.1, and 4.0.x before 4.0.19 allows remote attackers to cause a denial of service (memory consumption) via a `TextWebSocketFrame` followed by a long stream of `ContinuationWebSocketFrames`.

O3 Security · Impact-Aware SCA

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