CVE-2018-0381

What it is

A vulnerability in the Cisco Aironet Series Access Points (APs) software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to a deadlock condition that may occur when an affected AP attempts to dequeue aggregated traffic that is destined to an attacker-controlled wireless client. An attacker who can successfully transition between multiple Service Set Identifiers (SSIDs) hosted on the same AP while replicating the required traffic patterns could trigger the deadlock condition. A watchdog timer that detects the condition will trigger a reload of the device, resulting in a DoS condition while the device restarts.

At a glance

Exploitability

Can be exploited from the same network segment with a low-privilege account. High risk of service disruption.

Exploit odds

0.5% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2018-10-17 22:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 01:30 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.5% in the next 30 days (EPSS).
• Severity: 6.8 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2018-10-17 22:29 UTC

Last modified

2026-06-17 01:30 UTC

Exploit probability

0.5% · EPSS, next 30 days

Weakness

CWE-400 · Uncontrolled resource consumption

Record status

Modified

Affected

• Cisco Aironet Access Points 8.2\(166.0\)
• Cisco Aironet Access Points 8.2\(167.3\)
• Cisco Aironet Access Points 8.3\(133.0\)
• Cisco Aironet Access Points 8.3\(141.10\)
• Cisco Aironet Access Points 8.5\(120.0\)
• Cisco Aironet Access Points 8.7\(1.96\)
• Cisco Aironet Access Points 8.7\(1.99\)
• Cisco Aironet Access Points 8.7\(1.107\)

Attack profile CVSS 3.1 · 6.8

Attack vector

Adjacent network

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2018-0381.md and follow it. Check whether this project is affected by CVE-2018-0381. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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