How severe is CVE-2014-6383?

CVE-2014-6383 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2014-6383 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-6383?

CVE-2014-6383 primarily affects Juniper Junos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-6383?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-6383 published?

CVE-2014-6383 was published on 2015-01-16 and last updated on 2026-06-17.

CVE-2014-6383

CVE-2014-6383 is a medium-severity vulnerability in Juniper Junos with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-17.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-17
Affected product: Juniper Junos
Published: 2015-01-16
Last modified: 2026-06-17

Description

The stateless firewall in Juniper Junos 13.3R3, 14.1R1, and 14.1R2, when using Trio-based PFE modules, does not properly match ports, which might allow remote attackers to bypass firewall rule.

Frequently asked questions

What is CVE-2014-6383?: The stateless firewall in Juniper Junos 13.3R3, 14.1R1, and 14.1R2, when using Trio-based PFE modules, does not properly match ports, which might allow remote attackers to bypass firewall rule.
How severe is CVE-2014-6383?: CVE-2014-6383 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2014-6383 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-6383?: CVE-2014-6383 primarily affects Juniper Junos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-6383?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-6383 published?: CVE-2014-6383 was published on 2015-01-16 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:juniper:junos:13.3:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:14.2:r2:*:*:*:*:*:*

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