CVE-2007-4011

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.

Published: 2007-07-25 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-4011 is rated Moderate Risk (54.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.63%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2007-4011

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.33% 1.63% +0.30%
2 2026-05-06 1.07% 1.33% +0.25%
3 2026-03-14 — 1.07% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-4011

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.1 2.0 HIGH
AV:N/AC:M/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 6.9 [email protected]

Weakness enumeration for CVE-2007-4011

Affected software / configurations for CVE-2007-4011

Vendor Product Version Raw CPE
cisco wireless_lan_controller_software 3.2 cpe:2.3:o:cisco:wireless_lan_controller_software:3.2:*:*:*:*:*:*:*
cisco wireless_lan_controller_software 3.2.116.21 cpe:2.3:o:cisco:wireless_lan_controller_software:3.2.116.21:*:*:*:*:*:*:*
cisco wireless_lan_controller_software 4.0 cpe:2.3:o:cisco:wireless_lan_controller_software:4.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_software 4.0.155.0 cpe:2.3:o:cisco:wireless_lan_controller_software:4.0.155.0:*:*:*:*:*:*:*
cisco wireless_lan_controller_software 4.1 cpe:2.3:o:cisco:wireless_lan_controller_software:4.1:*:*:*:*:*:*:*

References for CVE-2007-4011

cvelogic Threat Intelligence