CVE-2018-0442
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol component of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to retrieve memory contents, which could lead to the disclosure of confidential information. The vulnerability is due to insufficient condition checks in the part of the code that handles CAPWAP keepalive requests. An attacker could exploit this vulnerability by sending a crafted CAPWAP keepalive packet to a vulnerable Cisco WLC device. A successful exploit could allow the attacker to retrieve the contents of device memory, which could lead to the disclosure of confidential information.
Key facts
- CVSS score
- 7.5 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
- CWE-200
- EPSS score
- 3.3% (88th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2018-1265)
- Published
- October 17, 2018
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2018-1265 in the EU Vulnerability Database. Last updated in EUVD on November 26, 2024.
View on the EU Vulnerability DatabaseAffected products
- cisco / wireless lan controller software
Certified products that may be affected
3 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Cisco 5508 Wireless LAN Controller - Cisco Systems, Inc. - FIPS 140 2065 - historical
- Cisco 5508 Wireless LAN Controller - Cisco Systems, Inc. - FIPS 140 1829 - historical
- Cisco 5508 Wireless LAN Controller - Cisco Systems, Inc. - FIPS 140 1447 - historical
References
- http://www.securityfocus.com/bid/105664(Third Party Advisory, VDB Entry)
- http://www.securitytracker.com/id/1041923(Third Party Advisory, VDB Entry)
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-capwap-memory-leak(Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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