CVE-2007-2039
The Network Processing Unit (NPU) in the Cisco Wireless LAN Controller (WLC) before 3.2.171.5, 4.0.x before 4.0.206.0, and 4.1.x allows remote attackers on a local wireless network to cause a denial of service (loss of packet forwarding) via (1) crafted SNAP packets, (2) malformed 802.11 traffic, or (3) packets with certain header length values, aka Bug IDs CSCsg15901 and CSCsh10841.
Key facts
- CVSS score
- 6.1 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:A/AC:L/Au:N/C:N/I:N/A:C- Weakness (CWE)
- CWE-399
- EPSS score
- 1.2% (69th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2007-2034)
- Published
- April 16, 2007
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2007-2034 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- cisco / wireless lan controller software
References
- http://securitytracker.com/id?1017908(Third Party Advisory, VDB Entry)
- http://www.cisco.com/warp/public/707/cisco-sa-20070412-wlc.shtml(Patch, Vendor Advisory)
- http://www.osvdb.org/34137(Broken Link)
- http://www.osvdb.org/34139(Broken Link)
- http://www.securityfocus.com/bid/23461(Third Party Advisory, VDB Entry)
- http://www.vupen.com/english/advisories/2007/1368(Third Party Advisory)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/33609(Third Party Advisory, VDB Entry)
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