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Vulnerability record · CVE-2013-1235 · published 4 May 2013

CVE-2013-1235: Cisco 2000 wireless lan controller vulnerability

Cisco · 2000 Wireless Lan Controller

Cisco Wireless LAN Controller (WLC) devices do not properly address the resource consumption of terminated TELNET sessions, which allows remote attackers to cause a denial of service (TELNET outage) by making many TELNET connections and improperly ending these connections, aka Bug ID CSCug35507.

5.0 CVSS 2.0 Medium EPSS 1.2% · top 32.2%
5.0CVSS 2.0 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
16Affected product versions listed by NVD
2References
16 Jun 2026Last modified by NVD

Description

Cisco Wireless LAN Controller (WLC) devices do not properly address the resource consumption of terminated TELNET sessions, which allows remote attackers to cause a denial of service (TELNET outage) by making many TELNET connections and improperly ending these connections, aka Bug ID CSCug35507.

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

Affected products

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

References

LinkTags
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1235 Vendor Advisory
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1235 Vendor Advisory

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Related vulnerabilities

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

9.3CVE-2012-0371Cisco wireless lan controller software permissions and access controls vulnerabilityCisco Wireless LAN Controller (WLC) devices with software 4.x, 5.x, 6.0, and 7.0 before 7.0.220.4, when CPU-based ACLs are enabled, allow remote atta…EPSS 1.8%9.0CVE-2013-1105Cisco wireless lan controller software permissions and access controls vulnerabilityCisco Wireless LAN Controller (WLC) devices with software 7.0 before 7.0.235.3, 7.1 and 7.2 before 7.2.111.3, and 7.3 before 7.3.101.0 allow remote a…EPSS 3.1%9.0CVE-2013-1104Cisco 2000 wireless lan controller vulnerabilityThe HTTP Profiling functionality on Cisco Wireless LAN Controller (WLC) devices with software 7.3.101.0 allows remote authenticated users to execute …EPSS 3.7%7.8CVE-2013-1102Cisco wireless lan controller software vulnerabilityThe Wireless Intrusion Prevention System (wIPS) component on Cisco Wireless LAN Controller (WLC) devices with software 7.0 before 7.0.235.0, 7.1 and …EPSS 1.8%7.8CVE-2013-1103Cisco wireless lan controller software vulnerabilityCisco Wireless LAN Controller (WLC) devices with software 7.0 before 7.0.220.0, 7.1 before 7.1.91.0, and 7.2 before 7.2.103.0 allow remote attackers …EPSS 1.8%7.8CVE-2012-0368Cisco wireless lan controller software vulnerabilityThe administrative management interface on Cisco Wireless LAN Controller (WLC) devices with software 4.x, 5.x, 6.0, and 7.0 before 7.0.220.0, 7.1 bef…EPSS 1.3%7.8CVE-2012-0369Cisco wireless lan controller software vulnerabilityCisco Wireless LAN Controller (WLC) devices with software 6.0 and 7.0 before 7.0.220.0, 7.1 before 7.1.91.0, and 7.2 before 7.2.103.0 allow remote at…EPSS 1.9%7.8CVE-2012-0370Cisco wireless lan controller software vulnerabilityCisco Wireless LAN Controller (WLC) devices with software 4.x, 5.x, 6.0, and 7.0 before 7.0.220.0 and 7.1 before 7.1.91.0, when WebAuth is enabled, a…EPSS 1.3%

Source: NIST National Vulnerability Database (record CVE-2013-1235), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.