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Vulnerability record · CVE-2015-0756 · published 29 May 2015

CVE-2015-0756: Cisco wireless lan controller improper input validation vulnerability

Cisco · Wireless Lan Controller

Cisco Wireless LAN Controller (WLC) devices with software 7.4(1.1) allow remote attackers to cause a denial of service (wireless-networking outage) via crafted TCP traffic on the local network, aka Bug ID CSCug67104.

6.1 CVSS 2.0 Medium EPSS 0.72% · top 47.8% CWE-20 · Improper input validationCWE-399 · CWE-399
6.1CVSS 2.0 base score
0.72%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Cisco Wireless LAN Controller (WLC) devices with software 7.4(1.1) allow remote attackers to cause a denial of service (wireless-networking outage) via crafted TCP traffic on the local network, aka Bug ID CSCug67104.

AV:A/AC:L/Au:N/C:N/I:N/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://tools.cisco.com/security/center/viewAlert.x?alertId=39041 Vendor Advisory
http://www.securitytracker.com/id/1032419 Third Party AdvisoryVDB Entry
http://tools.cisco.com/security/center/viewAlert.x?alertId=39041 Vendor Advisory
http://www.securitytracker.com/id/1032419 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2014-0703Cisco wireless lan controller software race condition vulnerabilityCisco Wireless LAN Controller (WLC) devices 7.4 before 7.4.110.0 distribute Aironet IOS software with a race condition in the status of the administr…EPSS 2.0%8.6CVE-2020-3560Cisco wireless lan controller uncontrolled resource consumption vulnerabilityA vulnerability in Cisco Aironet Access Points (APs) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) on an affecte…EPSS 1.4%8.6CVE-2020-3559Cisco wireless lan controller uncontrolled resource consumption vulnerabilityA vulnerability in Cisco Aironet Access Point (AP) Software could allow an unauthenticated, remote attacker to cause an affected device to reload. Th…EPSS 1.4%7.8CVE-2018-0417Cisco wireless lan controller software permissions and access controls vulnerabilityA vulnerability in TACACS authentication with Cisco Wireless LAN Controller (WLC) Software could allow an authenticated, local attacker to perform ce…EPSS 3.2%7.8CVE-2014-0706Cisco wireless lan controller software vulnerabilityCisco Wireless LAN Controller (WLC) devices 7.2 before 7.2.115.2, 7.3, and 7.4 before 7.4.110.0 allow remote attackers to cause a denial of service (…EPSS 1.3%7.8CVE-2014-0707Cisco wireless lan controller software vulnerabilityCisco Wireless LAN Controller (WLC) devices 7.2, 7.3, and 7.4 before 7.4.110.0 allow remote attackers to cause a denial of service (device restart) v…EPSS 1.3%7.4CVE-2020-3552Cisco wireless lan controller null pointer dereference vulnerabilityA vulnerability in the Ethernet packet handling of Cisco Aironet Access Points (APs) Software could allow an unauthenticated, adjacent attacker to ca…EPSS 0.49%7.1CVE-2015-0622Cisco wireless lan controller improper input validation vulnerabilityThe Wireless Intrusion Detection (aka WIDS) functionality on Cisco Wireless LAN Controller (WLC) devices allows remote attackers to cause a denial of…EPSS 1.4%

Source: NIST National Vulnerability Database (record CVE-2015-0756), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.