CVE-2018-0441

Cisco IOS Access Points Software 802.11r Fast Transition Denial of Service Vulnerability

HIGH
7.4
CVSS Score
Published: October 17, 2018 at 10:00 PM UTC
Updated: June 17, 2026 at 01:30 AM UTC
2 products affected across 1 vendorAccess PointsAironet Access Point

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Severity
HIGH7.4
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Affected range stops below 8.3.140.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.5.110.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGHcisco
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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