Cisco Wireless LAN Controller (WLC) devices do not properly address the resource…
Priority LOW 25Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.01232 69th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 16
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:cisco:2000_wireless_lan_controller:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:2100_wireless_lan_controller:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:2106_wireless_lan_controller:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:2112_wireless_lan_controller:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:2125_wireless_lan_controller:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:2500_wireless_lan_controller:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:2504_wireless_lan_controller:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:4100_wireless_lan_controller:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:4400_wireless_lan_controller:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:4402_wireless_lan_controller:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
- cpe:2.3:h:cisco:2000_wireless_lan_controller:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:2100_wireless_lan_controller:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:2106_wireless_lan_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:2112_wireless_lan_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:2125_wireless_lan_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:2500_wireless_lan_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:2504_wireless_lan_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:4100_wireless_lan_controller:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:4400_wireless_lan_controller:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:4402_wireless_lan_controller:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
Show 6 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:cisco:4404_wireless_lan_controller:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:5500_wireless_lan_controller:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:7500_wireless_lan_controller:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:8500_wireless_lan_controller:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:airespace_4000_wireless_lan_controller:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:wireless_lan_controller:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
- cpe:2.3:h:cisco:4404_wireless_lan_controller:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:5500_wireless_lan_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:7500_wireless_lan_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:8500_wireless_lan_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:airespace_4000_wireless_lan_controller:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:wireless_lan_controller:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-1235
- 2026-10-03 Alias added: GHSA-ffwh-46r8-rg8g
References
More Cisco 2000 Wireless Lan Controller vulnerabilities
- TI-2013-00954 The HTTP Profiling functionality on Cisco Wireless LAN Controller (WLC) devices with… CVSS 2.0HIGH 9.0
- TI-2013-00955 Cisco Wireless LAN Controller (WLC) devices with software 7.0 before 7.0.235.3, 7.1 and… CVSS 2.0HIGH 9.0
- TI-2012-00344 Cisco Wireless LAN Controller (WLC) devices with software 4.x, 5.x, 6.0, and 7.0 before… CVSS 2.0HIGH 9.3
- TI-2013-00953 Cisco Wireless LAN Controller (WLC) devices with software 7.0 before 7.0.220.0, 7.1… CVSS 2.0HIGH 7.8
- TI-2013-00952 The Wireless Intrusion Prevention System (wIPS) component on Cisco Wireless LAN… CVSS 2.0HIGH 7.8
- TI-2012-00342 Cisco Wireless LAN Controller (WLC) devices with software 6.0 and 7.0 before 7.0.220.0… CVSS 2.0HIGH 7.8
Sources
- CVE-2013-1235 · CVE Program
- CVE-2013-1235 · NVD
- FIRST EPSS
- GHSA-ffwh-46r8-rg8g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences