How severe is CVE-2014-6386?

CVE-2014-6386 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2014-6386 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-6386?

CVE-2014-6386 primarily affects Juniper Junos. In total, 38 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-6386?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-6386 published?

CVE-2014-6386 was published on 2015-01-16 and last updated on 2026-06-17.

CVE-2014-6386

CVE-2014-6386 is a high-severity vulnerability in Juniper Junos with a CVSS 2.0 base score of 7.8. 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: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 3% (84th 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

Juniper Junos 11.4 before 11.4R8, 12.1X44 before 12.1X44-D35, 12.1X45 before 12.1X45-D25, 12.1X46 before 12.1X46-D20, 12.1X47 before 12.1X47-D10, 12.2 before 12.2R9, 12.3R2 before 12.3R2-S3, 12.3 before 12.3R3, 13.1 before 13.1R4, and 13.2 before 13.2R1 allows remote attackers to cause a denial of service (assertion failure and rpd restart) via a crafted BGP FlowSpec prefix.

Frequently asked questions

What is CVE-2014-6386?: Juniper Junos 11.4 before 11.4R8, 12.1X44 before 12.1X44-D35, 12.1X45 before 12.1X45-D25, 12.1X46 before 12.1X46-D20, 12.1X47 before 12.1X47-D10, 12.2 before 12.2R9, 12.3R2 before 12.3R2-S3, 12.3 before 12.3R3, 13.1 before 13.1R4, and 13.2 before 13.2R1 allows remote attackers to cause a denial of service (assertion failure and rpd restart) via a crafted BGP FlowSpec prefix.
How severe is CVE-2014-6386?: CVE-2014-6386 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2014-6386 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-6386?: CVE-2014-6386 primarily affects Juniper Junos. In total, 38 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-6386?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2014-6386 published?: CVE-2014-6386 was published on 2015-01-16 and last updated on 2026-06-17.

References

Affected products (38)

cpe:2.3:o:juniper:junos:11.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:11.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:11.4:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:11.4:r4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:11.4:r5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:11.4:r6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:11.4:r7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x44:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x44:d10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x44:d15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x44:d20:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x44:d25:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x44:d30:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x45:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x45:d10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x45:d15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x45:d20:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.2:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.2:r4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.2:r5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.2:r6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.2:r7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.2:r8:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.1:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.1:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:*:*:*:*:*:*:*

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