How severe is CVE-2014-3409?

CVE-2014-3409 has a CVSS 2.0 base score of 6.1, rated medium severity.

Is CVE-2014-3409 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3409?

CVE-2014-3409 primarily affects Cisco Ios. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3409?

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

When was CVE-2014-3409 published?

CVE-2014-3409 was published on 2014-10-25 and last updated on 2026-06-17.

CVE-2014-3409

CVE-2014-3409 is a medium-severity vulnerability in Cisco Ios 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-399.

Key facts

Severity: Medium (CVSS 2.0 base score 6.1)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Ios
Published: 2014-10-25
Last modified: 2026-06-17

Description

The Ethernet Connectivity Fault Management (CFM) handling feature in Cisco IOS 12.2(33)SRE9a and earlier and IOS XE 3.13S and earlier allows remote attackers to cause a denial of service (device reload) via malformed CFM packets, aka Bug ID CSCuq93406.

Frequently asked questions

What is CVE-2014-3409?: The Ethernet Connectivity Fault Management (CFM) handling feature in Cisco IOS 12.2(33)SRE9a and earlier and IOS XE 3.13S and earlier allows remote attackers to cause a denial of service (device reload) via malformed CFM packets, aka Bug ID CSCuq93406.
How severe is CVE-2014-3409?: CVE-2014-3409 has a CVSS 2.0 base score of 6.1, rated medium severity.
Is CVE-2014-3409 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3409?: CVE-2014-3409 primarily affects Cisco Ios. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-3409?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-3409 published?: CVE-2014-3409 was published on 2014-10-25 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*

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