How severe is CVE-2014-3356?

CVE-2014-3356 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2014-3356 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3356?

CVE-2014-3356 primarily affects Cisco Ios Xe. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3356?

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-2014-3356 published?

CVE-2014-3356 was published on 2014-09-25 and last updated on 2026-06-17.

CVE-2014-3356

CVE-2014-3356 is a high-severity vulnerability in Cisco Ios Xe 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-119.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Cisco Ios Xe
Published: 2014-09-25
Last modified: 2026-06-17

Description

The metadata flow feature in Cisco IOS 15.1 through 15.3 and IOS XE 3.3.xXO before 3.3.1XO, 3.6.xS and 3.7.xS before 3.7.6S, and 3.8.xS, 3.9.xS, and 3.10.xS before 3.10.1S allows remote attackers to cause a denial of service (device reload) via malformed RSVP packets, aka Bug ID CSCue22753.

Frequently asked questions

What is CVE-2014-3356?: The metadata flow feature in Cisco IOS 15.1 through 15.3 and IOS XE 3.3.xXO before 3.3.1XO, 3.6.xS and 3.7.xS before 3.7.6S, and 3.8.xS, 3.9.xS, and 3.10.xS before 3.10.1S allows remote attackers to cause a denial of service (device reload) via malformed RSVP packets, aka Bug ID CSCue22753.
How severe is CVE-2014-3356?: CVE-2014-3356 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2014-3356 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3356?: CVE-2014-3356 primarily affects Cisco Ios Xe. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-3356?: 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-2014-3356 published?: CVE-2014-3356 was published on 2014-09-25 and last updated on 2026-06-17.

References

Affected products (17)

cpe:2.3:o:cisco:ios_xe:3.3\(.0\)xo:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.0s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.1s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.2s:*:*:*:*:*:*:*
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\(0\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.8\(1\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.8\(2\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.9\(0\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.9\(1a\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.9\(2\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.10s:*:*:*:*:*:*:*

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