What is the CVSS score of CVE-2021-22126?

CVE-2021-22126 has a CVSS 3.1 base score of 6.7 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Fortiwlc are affected by CVE-2021-22126?

Organizations using FortiWLC should be aware of notable risk from CVE-2021-22126, a improper access control vulnerability rated CVSS 6.7.

How to fix or mitigate CVE-2021-22126?

Within 30 days: Identify affected systems running FortiWLC and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Fortiwlc CVE-2021-22126

MEDIUM

Improper Access Control (CWE-284)

2025-03-17 psirt@fortinet.com

Authentication Bypass Fortiwlc

6.7

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.7 MEDIUM

AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:31 vuln.today

CVE Published

Mar 17, 2025 - 14:15 nvd

MEDIUM 6.7

DescriptionCVE.org

A use of hard-coded password vulnerability in FortiWLC version 8.5.2 and below, version 8.4.8 and below, version 8.3.3 to 8.3.2, version 8.2.7 to 8.2.6 may allow a local, authenticated attacker to connect to the managed Access Point (Meru AP and FortiAP-U) as root using the default hard-coded username and password.

AnalysisAI

A use of hard-coded password vulnerability in FortiWLC version 8.5.2 and below, version 8.4.8 and below, version 8.3.3 to 8.3.2, version 8.2.7 to 8.2.6 may allow a local, authenticated attacker to. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-284. A use of hard-coded password vulnerability in FortiWLC version 8.5.2 and below, version 8.4.8 and below, version 8.3.3 to 8.3.2, version 8.2.7 to 8.2.6 may allow a local, authenticated attacker to connect to the managed Access Point (Meru AP and FortiAP-U) as root using the default hard-coded username and password. Affected products include: Fortinet Fortiwlc. Version information: version 8.5.2.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.