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…

Description

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.

Scores

EPSS (exploitation in 30 days)

1.2% · top 31% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.

Weakness

• n/a
• CWE-399 (opens in a new tab)All about CWE-399 and its CVEs

Affected products

• n/a

  • affected n/a

References (7)

• ADV-2007-1368 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 20070412 Multiple Vulnerabilities in the Cisco Wireless LAN Controller and Cisco Lightweight Access Points (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
• 34137 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• 1017908 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• cisco-wlc-npu-traffic-dos(33609) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 34139 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• 23461 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2007-2039](https://trackcve.app/badge/CVE-2007-2039.svg)](https://trackcve.app/cve/CVE-2007-2039)

Record last updated 7 Aug 2024, 13:23 UTC.