How severe is CVE-2014-6380?

CVE-2014-6380 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2014-6380 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-6380?

CVE-2014-6380 primarily affects Juniper Junos. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-6380?

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-2014-6380 published?

CVE-2014-6380 was published on 2014-10-14 and last updated on 2026-06-17.

CVE-2014-6380

CVE-2014-6380 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.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Juniper Junos
Published: 2014-10-14
Last modified: 2026-06-17

Description

Juniper Junos 11.4 before R11, 12.1 before R9, 12.1X44 before D30, 12.1X45 before D20, 12.1X46 before D15, 12.1X47 before D10, 12.2 before R8, 12.2X50 before D70, 12.3 before R6, 13.1 before R4, 13.1X49 before D55, 13.1X50 before D30, 13.2 before R4, 13.2X50 before D20, 13.2X51 before D15, 13.2X52 before D15, 13.3 before R1, when using an em interface to connect to a certain internal network, allows remote attackers to cause a denial of service (em driver bock and FPC reset or "go offline") via a series of crafted (1) CLNP fragmented packets, when clns-routing or ESIS is configured, or (2) IPv4 or (3) IPv6 fragmented packets.

Frequently asked questions

What is CVE-2014-6380?: Juniper Junos 11.4 before R11, 12.1 before R9, 12.1X44 before D30, 12.1X45 before D20, 12.1X46 before D15, 12.1X47 before D10, 12.2 before R8, 12.2X50 before D70, 12.3 before R6, 13.1 before R4, 13.1X49 before D55, 13.1X50 before D30, 13.2 before R4, 13.2X50 before D20, 13.2X51 before D15, 13.2X52 before D15, 13.3 before R1, when using an em interface to connect to a certain internal network, allows remote attackers to cause a denial of service (em driver bock and FPC reset or "go offline") via a series of crafted (1) CLNP fragmented packets, when clns-routing or ESIS is configured, or (2) IPv4 or (3) IPv6 fragmented packets.
How severe is CVE-2014-6380?: CVE-2014-6380 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2014-6380 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-6380?: CVE-2014-6380 primarily affects Juniper Junos. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-6380?: 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-2014-6380 published?: CVE-2014-6380 was published on 2014-10-14 and last updated on 2026-06-17.

References

Affected products (18)

cpe:2.3:o:juniper:junos:11.4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1r:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x44:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x45:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.2x50:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.1x49:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.1x50:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2x50:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2x51:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2x52:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.3:*:*:*:*:*:*:*

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