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CVE-2009-1167

26
FAUCET Score

CVE-2009-1167 describes an unspecified vulnerability in Cisco Wireless LAN Controllers (WLC) across several series (1500, 2000, 2100, 4100, 4200, 4400, and Catalyst 3750G) running specific 4.x and 5.x firmware versions. This flaw allows remote, unauthenticated attackers to modify the WLC's configuration via crafted HTTP or HTTPS requests. The vulnerability carries a critical CVSS score of 10.0, indicating a severe risk. Its attack vector is network-based with low complexity, requiring no authentication, and can lead to complete compromise of confidentiality, integrity, and availability. Despite its critical severity, there is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. Furthermore, the vulnerability has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:cisco:catalyst_3750g:*:*:*:*:*:*:*:*
4.1CPE matchmatch criteria
cpe:2.3:h:cisco:cisco_1500_wireless_lan_controller:4.1:*:*:*:*:*:*:*
4.1mCPE matchmatch criteria
cpe:2.3:h:cisco:cisco_1500_wireless_lan_controller:4.1m:*:*:*:*:*:*:*
4.2CPE matchmatch criteria
cpe:2.3:h:cisco:cisco_1500_wireless_lan_controller:4.2:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:h:cisco:cisco_1500_wireless_lan_controller:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.15%
Probability of exploitation in next 30 days
EPSS Percentile
80.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0215 is in the 65th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisco.com / en/US/products/products_security_advisory09186a0080adb3d7.shtml
Vendor Advisory
securitytracker.com / id
vupen.com / english/advisories/2009/2021