How severe is CVE-2014-3343?

CVE-2014-3343 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2014-3343 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3343?

CVE-2014-3343 affects Cisco Ios Xr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-3343?

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

When was CVE-2014-3343 published?

CVE-2014-3343 was published on 2014-09-10 and last updated on 2026-06-17.

CVE-2014-3343

CVE-2014-3343 is a medium-severity vulnerability in Cisco Ios Xr with a CVSS 2.0 base score of 4.3. 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 4.3)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Ios Xr
Published: 2014-09-10
Last modified: 2026-06-17

Description

Cisco IOS XR 5.1 allows remote attackers to cause a denial of service (DHCPv6 daemon crash) via a malformed DHCPv6 packet, aka Bug ID CSCuo59052.

Frequently asked questions

What is CVE-2014-3343?: Cisco IOS XR 5.1 allows remote attackers to cause a denial of service (DHCPv6 daemon crash) via a malformed DHCPv6 packet, aka Bug ID CSCuo59052.
How severe is CVE-2014-3343?: CVE-2014-3343 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2014-3343 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3343?: CVE-2014-3343 affects Cisco Ios Xr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2014-3343?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-3343 published?: CVE-2014-3343 was published on 2014-09-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:cisco:ios_xr:5.1.0:*:*:*:*:*:*:*

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