How severe is CVE-2016-6376?

CVE-2016-6376 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-6376 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6376?

CVE-2016-6376 primarily affects Cisco Wireless Lan Controller. In total, 95 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-6376?

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

When was CVE-2016-6376 published?

CVE-2016-6376 was published on 2016-09-02 and last updated on 2026-06-17.

CVE-2016-6376

CVE-2016-6376 is a medium-severity vulnerability in Cisco Wireless Lan Controller with a CVSS 3.x base score of 6.5. 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: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.1
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Wireless Lan Controller
Published: 2016-09-02
Last modified: 2026-06-17

Description

The Adaptive Wireless Intrusion Prevention System (wIPS) feature on Cisco Wireless LAN Controller (WLC) devices before 8.0.140.0, 8.1.x and 8.2.x before 8.2.121.0, and 8.3.x before 8.3.102.0 allows remote attackers to cause a denial of service (device restart) via a malformed wIPS packet, aka Bug ID CSCuz40263.

Frequently asked questions

What is CVE-2016-6376?: The Adaptive Wireless Intrusion Prevention System (wIPS) feature on Cisco Wireless LAN Controller (WLC) devices before 8.0.140.0, 8.1.x and 8.2.x before 8.2.121.0, and 8.3.x before 8.3.102.0 allows remote attackers to cause a denial of service (device restart) via a malformed wIPS packet, aka Bug ID CSCuz40263.
How severe is CVE-2016-6376?: CVE-2016-6376 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-6376 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6376?: CVE-2016-6376 primarily affects Cisco Wireless Lan Controller. In total, 95 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-6376?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-6376 published?: CVE-2016-6376 was published on 2016-09-02 and last updated on 2026-06-17.

References

Affected products (95)

cpe:2.3:a:cisco:wireless_lan_controller:3.0_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.1.59.24:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.1.105.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.1.111.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.2.78.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.2.116.21:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.2.150.6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.2.150.10:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.2.171.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.2.171.6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.2.185.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.2.193.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.2.195.10:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:3.6.0e:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.0.108:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.0.155.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.0.155.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.0.179.8:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.0.179.11:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.0.196:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.0.206.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.0.217.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.0.219.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.1.171.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.1.181.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.1.185.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.1_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.2.61.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.2.99.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.2.112.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.2.117.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.2.130.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.2.173.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.2.174.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.2.176.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.2.182.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:4.2_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:5.0.148.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:5.0.148.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:wireless_lan_controller:5.1.151.0:*:*:*:*:*:*:*

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Other CWE-399 (Resource Management Errors) vulnerabilities

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CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
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