kbrain

CVE-2009-1165

HIGH · CVSS 7.8EPSS 1.6%EU EUVD

Memory leak on the Cisco Wireless LAN Controller (WLC) platform 4.x before 4.2.205.0, 5.1 before 5.1.163.0, and 5.0 and 5.2 before 5.2.178.0, as used in Cisco 1500 Series, 2000 Series, 2100 Series, 4100 Series, 4200 Series, and 4400 Series Wireless Services Modules (WiSM), WLC Modules for Integrated Services Routers, and Catalyst 3750G Integrated Wireless LAN Controllers, allows remote attackers to cause a denial of service (memory consumption and device reload) via SSH management connections, aka Bug ID CSCsw40789.

Key facts

CVSS score
7.8 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness (CWE)
CWE-399
EPSS score
1.6% (76th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2009-1165)
Published
July 29, 2009
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-1165 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • cisco / catalyst 3750g
  • cisco / cisco 1500 wireless lan controller
  • cisco / cisco 1500 wireless lan controller
  • cisco / cisco 1500 wireless lan controller
  • cisco / cisco 1500 wireless lan controller
  • cisco / cisco 1500 wireless lan controller
  • cisco / cisco 1500 wireless lan controller
  • cisco / cisco 2000 wireless lan controller
  • cisco / cisco 2000 wireless lan controller
  • cisco / cisco 2000 wireless lan controller
  • cisco / cisco 2000 wireless lan controller
  • cisco / cisco 2000 wireless lan controller
  • cisco / cisco 2000 wireless lan controller
  • cisco / cisco 2100 wireless lan controller
  • cisco / cisco 2100 wireless lan controller
  • cisco / cisco 2100 wireless lan controller
  • cisco / cisco 2100 wireless lan controller
  • cisco / cisco 2100 wireless lan controller
  • cisco / cisco 2100 wireless lan controller
  • cisco / cisco 4100 wireless lan controller
  • cisco / cisco 4100 wireless lan controller
  • cisco / cisco 4100 wireless lan controller
  • cisco / cisco 4100 wireless lan controller
  • cisco / cisco 4100 wireless lan controller
  • cisco / cisco 4100 wireless lan controller
  • cisco / cisco 4200 wireless lan controller
  • cisco / cisco 4200 wireless lan controller
  • cisco / cisco 4200 wireless lan controller
  • cisco / cisco 4200 wireless lan controller
  • cisco / cisco 4200 wireless lan controller
  • cisco / cisco 4200 wireless lan controller
  • cisco / cisco 4400 wireless lan controller
  • cisco / cisco 4400 wireless lan controller
  • cisco / cisco 4400 wireless lan controller
  • cisco / cisco 4400 wireless lan controller
  • cisco / cisco 4400 wireless lan controller
  • cisco / cisco 4400 wireless lan controller

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain