Improper input validation in Cisco Wireless Lan Controller (Wlc)
CVE-2018-0443
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 cause a denial of service (DoS) condition. The vulnerability is due to improper input validation on fields within CAPWAP Discovery Request packets by the affected device. An attacker could exploit this vulnerability by sending malicious CAPWAP Discovery Request packets to the Cisco WLC Software. A successful exploit could allow the attacker to cause the Cisco WLC Software to disconnect associated access points (APs). While the APs disconnect and reconnect, service will be unavailable for a brief period of time, resulting in a DoS condition.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.034 (88.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000
Affected products
- Cisco Wireless Lan Controller (Wlc)
- Cisco Wireless Lan Controller Software — versions 8.2\(151.0\), 8.2(151.0)
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017… (vendor-advisory, Vendor Advisory)
- www.securitytracker.com/id/1041922 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/105686 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-0443?
- CVE-2018-0443 is a high-severity vulnerability in Cisco Wireless Lan Controller (Wlc), classified under CWE-399. CVSS score: 7.5/10. Published 2018-10-17.
- How severe is CVE-2018-0443?
- High severity. CVSS v3 base score is 7.5 out of 10.