CVE-2014-6309: The HTTP and WebSocket engine components in the server in Kaazing Gateway 4.0.2, 4.0.3, and 4.0.4 and Gateway

This month

HIGH 7.5REMOTEDOWNGRADE

CVE-2014-6309 is a high-severity flaw (CVSS 7.5) affecting kaazing websocket gateway. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The HTTP and WebSocket engine components in the server in Kaazing Gateway 4.0.2, 4.0.3, and 4.0.4 and Gateway - JMS Edition 4.0.2, 4.0.3, and 4.0.4 allow remote attackers to obtain sensitive information via vectors related to HTTP request handling.

Why this priority

High severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-200
Published	2018-04-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: tenefit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-04-12 15:29 UTCPublished CVE record published
2026-06-17 00:12 UTCUpdated Record last modified

tenefit kaazing websocket gateway DOWNGRADE

Affected: 4.0.2 · 4.0.3 · 4.0.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0.2

1. Check installed version

apt-cache policy kaazing-websocket-gateway || rpm -q kaazing-websocket-gateway || kaazing-websocket-gateway --version

2. No fixed release: DOWNGRADE to a release before 4.0.2 (Debian / Ubuntu)

apt-cache madison kaazing-websocket-gateway sudo apt install kaazing-websocket-gateway=<VERSION_BEFORE_4.0.2> sudo apt-mark hold kaazing-websocket-gateway

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list kaazing-websocket-gateway sudo dnf downgrade kaazing-websocket-gateway-<VERSION_BEFORE_4.0.2> sudo dnf versionlock add kaazing-websocket-gateway

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2014-6309?

kaazing websocket gateway: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-6309 being exploited?

CVE-2014-6309 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2014-6309 affect?

CVE-2014-6309 affects kaazing websocket gateway. Severity is high (CVSS 7.5). The HTTP and WebSocket engine components in the server in Kaazing Gateway 4.0.2, 4.0.3, and 4.0.4 and Gateway - JMS Edition 4.0.2, 4.0.3, and 4.0.4 allow remote attackers to obtain sensitive information via vectors related to HTTP request h

How urgent is CVE-2014-6309?

Priority 50/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2017-6910 HIGH 7.5 UPGRADE UPGRADE The HTTP and WebSocket engine components in the server in Kaazing Gateway before 4.5.3 hotfix-1, Gateway - JMS

References

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