What’s Vulnerable › Vulnerabilities

CVE-2018-0134

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-02-08 · updated 2026-06-17
• Weakness: CWE-200

Description

A vulnerability in the RADIUS authentication module of Cisco Policy Suite could allow an unauthenticated, remote attacker to determine whether a subscriber username is valid. The vulnerability occurs because the Cisco Policy Suite RADIUS server component returns different authentication failure messages based on the validity of usernames. An attacker could use these messages to determine whether a valid subscriber username has been identified. The attacker could use this information in subsequent attacks against the system. Cisco Bug IDs: CSCvg47830.

Affected products

• Cisco Mobility Express 2800 and 3800 Series Wireless LAN Controllers: 13.0.0, 13.1.0

References

• http://www.securityfocus.com/bid/102954
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-cps1
• http://www.securityfocus.com/bid/102954
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-cps1

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