How severe is CVE-2014-3357?

CVE-2014-3357 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2014-3357 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-2014-3357?

CVE-2014-3357 primarily affects Cisco Ios. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3357?

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-2014-3357 published?

CVE-2014-3357 was published on 2014-09-25 and last updated on 2026-06-17.

CVE-2014-3357

CVE-2014-3357 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-78.

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-78
Affected product: Cisco Ios
Published: 2014-09-25
Last modified: 2026-06-17

Description

Cisco IOS 15.0, 15.1, 15.2, and 15.4 and IOS XE 3.3.xSE before 3.3.2SE, 3.3.xXO before 3.3.1XO, 3.5.xE before 3.5.2E, and 3.11.xS before 3.11.1S allow remote attackers to cause a denial of service (device reload) via malformed mDNS packets, aka Bug ID CSCul90866.

Frequently asked questions

What is CVE-2014-3357?: Cisco IOS 15.0, 15.1, 15.2, and 15.4 and IOS XE 3.3.xSE before 3.3.2SE, 3.3.xXO before 3.3.1XO, 3.5.xE before 3.5.2E, and 3.11.xS before 3.11.1S allow remote attackers to cause a denial of service (device reload) via malformed mDNS packets, aka Bug ID CSCul90866.
How severe is CVE-2014-3357?: CVE-2014-3357 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2014-3357 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-2014-3357?: CVE-2014-3357 primarily affects Cisco Ios. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-3357?: 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-2014-3357 published?: CVE-2014-3357 was published on 2014-09-25 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.3\(.0\)xo:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.3.0se:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.3.1se:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.5.0e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.5.1e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.11.0s:*:*:*:*:*:*:*

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