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CVE-2007-4011

HIGH · CVSS 7.1EPSS 1.6%EU EUVD

Cisco 4100 and 4400, Airespace 4000, and Catalyst 6500 and 3750 Wireless LAN Controller (WLC) software before 3.2 20070727, 4.0 before 20070727, and 4.1 before 4.1.180.0 allows remote attackers to cause a denial of service (traffic amplification or ARP storm) via a crafted unicast ARP request that (1) has a destination MAC address unknown to the Layer-2 infrastructure, aka CSCsj69233; or (2) occurs during Layer-3 roaming across IP subnets, aka CSCsj70841.

Key facts

CVSS score
7.1 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:C
EPSS score
1.6% (76th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2007-3995)
Published
July 26, 2007
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2007-3995 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • cisco / 4100 wireless lan controller
  • cisco / 4400 wireless lan controller
  • cisco / airespace 4000 wireless lan controller
  • cisco / catalyst 3750
  • cisco / catalyst 6500
  • cisco / wireless lan controller software
  • cisco / wireless lan controller software
  • cisco / wireless lan controller software
  • cisco / wireless lan controller software
  • cisco / wireless lan controller software

References

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

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