How severe is CVE-2014-3359?

CVE-2014-3359 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2014-3359 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-2014-3359?

CVE-2014-3359 primarily affects Cisco Ios. In total, 34 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3359?

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-2014-3359 published?

CVE-2014-3359 was published on 2014-09-25 and last updated on 2026-06-17.

CVE-2014-3359

CVE-2014-3359 is a high-severity vulnerability in Cisco Ios 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-399.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Ios
Published: 2014-09-25
Last modified: 2026-06-17

Description

Memory leak in Cisco IOS 15.1 through 15.4 and IOS XE 3.4.xS, 3.5.xS, 3.6.xS, and 3.7.xS before 3.7.6S; 3.8.xS, 3.9.xS, and 3.10.xS before 3.10.1S; and 3.11.xS before 3.12S allows remote attackers to cause a denial of service (memory consumption or device reload) via malformed DHCPv6 packets, aka Bug ID CSCum90081.

Frequently asked questions

What is CVE-2014-3359?: Memory leak in Cisco IOS 15.1 through 15.4 and IOS XE 3.4.xS, 3.5.xS, 3.6.xS, and 3.7.xS before 3.7.6S; 3.8.xS, 3.9.xS, and 3.10.xS before 3.10.1S; and 3.11.xS before 3.12S allows remote attackers to cause a denial of service (memory consumption or device reload) via malformed DHCPv6 packets, aka Bug ID CSCum90081.
How severe is CVE-2014-3359?: CVE-2014-3359 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2014-3359 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-2014-3359?: CVE-2014-3359 primarily affects Cisco Ios. In total, 34 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-3359?: 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-2014-3359 published?: CVE-2014-3359 was published on 2014-09-25 and last updated on 2026-06-17.

References

Affected products (34)

cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4.0s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4.1s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4.2s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4.3s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4.4s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4.5s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.5.0s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.5.1s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.5.2s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6s\(.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6s\(.1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6s\(.2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.7\(0\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.7\(1\)as:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.7\(2\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.7\(3\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.7\(4\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.7\(5\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.8.0s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.8s\(.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.8s\(.1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.8s\(.2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.9s\(.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.9s\(.1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.9s\(.2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.10:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.10.0s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.11.0s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.11.1s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.11.2s:*:*:*:*:*:*:*

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