CVE-2014-3379

CVE-2014-3379 is a medium-severity vulnerability in Cisco Ios Xr with a CVSS 2.0 base score of 6.1. 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-20.

Key facts

• Severity: Medium (CVSS 2.0 base score 6.1)
• EPSS exploit prediction: 1% (55th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-20
• Affected product: Cisco Ios Xr
• Published: 2014-09-20
• Last modified: 2026-06-17

Description

Cisco IOS XR 5.1 and earlier on Network Convergence System 6000 devices allows remote attackers to cause a denial of service (NPU and card hang or reload) via a malformed MPLS packet, aka Bug ID CSCuq10466.

Frequently asked questions

What is CVE-2014-3379?

Cisco IOS XR 5.1 and earlier on Network Convergence System 6000 devices allows remote attackers to cause a denial of service (NPU and card hang or reload) via a malformed MPLS packet, aka Bug ID CSCuq10466.

How severe is CVE-2014-3379?

CVE-2014-3379 has a CVSS 2.0 base score of 6.1, rated medium severity.

Is CVE-2014-3379 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3379?

CVE-2014-3379 primarily affects Cisco Ios Xr. In total, 57 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3379?

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

When was CVE-2014-3379 published?

CVE-2014-3379 was published on 2014-09-20 and last updated on 2026-06-17.

References

• http://secunia.com/advisories/61372
• http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3379
• http://tools.cisco.com/security/center/viewAlert.x?alertId=35776
• http://www.securityfocus.com/bid/69960
• http://www.securitytracker.com/id/1030878
• https://exchange.xforce.ibmcloud.com/vulnerabilities/96068

Affected products (57)

• cpe:2.3:o:cisco:ios_xr:2.0:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.0:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.0.1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.1.0:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.2.1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.2.2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.2.4:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.2.50:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.3:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.3.1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.3.2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.3.3:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.3.4:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.3.5:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.4:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.4.1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.4.2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.4.3:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.5:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.5.1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.5.2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.5.3:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.5.4:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.6:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.6.1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.6.2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.6.3:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.7:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.7.1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.7.2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.7.3:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.8.0:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.8.1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.8.2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.8.3:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.8.4:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.9.0:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios_xr:3.9.1:*:*:*:*:*:*:*

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