CVE-2018-0415

A vulnerability in the implementation of Extensible Authentication Protocol over LAN (EAPOL) functionality in Cisco Small Business 100 Series Wireless Access Points and Cisco Small Business 300 Series Wireless Access Points could allow an authenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to the improper processing of certain EAPOL frames. An attacker could exploit this vulnerability by sending a stream of crafted EAPOL frames to an affected device. A successful exploit could allow the attacker to force the access point (AP) to disassociate all the associated stations (STAs) and to disallow future, new association requests. Cisco Bug IDs: CSCvj97472.

Published: 2018-08-15 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-0415 is rated Moderate Risk (42.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.63%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-0415

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.86% 0.63% -0.23%
2 2026-06-13 1.16% 0.86% -0.30%
3 2026-05-07 — 1.16% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-0415

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 3.0 MEDIUM
CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.3 4.0 [email protected]
5.5 2.0 MEDIUM
AV:A/AC:L/Au:S/C:N/I:N/A:C Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 5.1 6.9 [email protected]

Weakness enumeration for CVE-2018-0415

Affected software / configurations for CVE-2018-0415

Vendor Product Version Raw CPE
cisco wap121_firmware <= 1.0.6.6 cpe:2.3:o:cisco:wap121_firmware:*:*:*:*:*:*:*:*
cisco wap125_firmware <= 1.0.6.6 cpe:2.3:o:cisco:wap125_firmware:*:*:*:*:*:*:*:*
cisco wap131_firmware <= 1.0.6.6 cpe:2.3:o:cisco:wap131_firmware:*:*:*:*:*:*:*:*
cisco wap150_firmware <= 1.0.6.6 cpe:2.3:o:cisco:wap150_firmware:*:*:*:*:*:*:*:*
cisco wap321_firmware <= 1.0.6.6 cpe:2.3:o:cisco:wap321_firmware:*:*:*:*:*:*:*:*
cisco wap351_firmware <= 1.0.6.6 cpe:2.3:o:cisco:wap351_firmware:*:*:*:*:*:*:*:*
cisco wap361_firmware <= 1.0.6.6 cpe:2.3:o:cisco:wap361_firmware:*:*:*:*:*:*:*:*
cisco wap371_firmware <= 1.0.6.6 cpe:2.3:o:cisco:wap371_firmware:*:*:*:*:*:*:*:*

References for CVE-2018-0415

cvelogic Threat Intelligence