How severe is CVE-2014-3291?

CVE-2014-3291 has a CVSS 2.0 base score of 5.7, rated medium severity.

Is CVE-2014-3291 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-2014-3291?

CVE-2014-3291 affects Cisco Wireless Lan Controller. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-3291?

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

When was CVE-2014-3291 published?

CVE-2014-3291 was published on 2014-06-08 and last updated on 2026-06-17.

CVE-2014-3291

CVE-2014-3291 is a medium-severity vulnerability in Cisco Wireless Lan Controller with a CVSS 2.0 base score of 5.7. 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 5.7)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Wireless Lan Controller
Published: 2014-06-08
Last modified: 2026-06-17

Description

Cisco Wireless LAN Controller (WLC) devices allow remote attackers to cause a denial of service (NULL pointer dereference and device restart) via a zero value in Cisco Discovery Protocol packet data that is not properly handled during SNMP polling, aka Bug ID CSCuo12321.

Frequently asked questions

What is CVE-2014-3291?: Cisco Wireless LAN Controller (WLC) devices allow remote attackers to cause a denial of service (NULL pointer dereference and device restart) via a zero value in Cisco Discovery Protocol packet data that is not properly handled during SNMP polling, aka Bug ID CSCuo12321.
How severe is CVE-2014-3291?: CVE-2014-3291 has a CVSS 2.0 base score of 5.7, rated medium severity.
Is CVE-2014-3291 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-2014-3291?: CVE-2014-3291 affects Cisco Wireless Lan Controller. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2014-3291?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-3291 published?: CVE-2014-3291 was published on 2014-06-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:h:cisco:wireless_lan_controller:*:*:*:*:*:*:*:*

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