Resource exhaustion in Cisco Access Points
CVE-2018-0441
A vulnerability in the 802.11r Fast Transition feature set of Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a corruption of certain timer mechanisms triggered by specific roaming events. This corruption will eventually cause a timer crash. An attacker could exploit this vulnerability by sending malicious reassociation events multiple times to the same AP in a short period of time, causing a DoS condition on the affected AP.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.009 (57.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Cisco Access Points — versions 8.3\(102.0\), 15.3\(3\)jd, 8.2(141.0)
- Cisco Aironet Access Point Software
Weakness classification (CWE)
References
- www.securityfocus.com/bid/105680 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1041918 (VDB Entry, Third Party Advisory, vdb-entry)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-0441?
- CVE-2018-0441 is a high-severity vulnerability in Cisco Access Points, classified under Uncontrolled Resource Consumption. CVSS score: 7.4/10. Published 2018-10-17.
- How severe is CVE-2018-0441?
- High severity. CVSS v3 base score is 7.4 out of 10.