6.7

CVE-2021-22126: fortinet fortiwlc Improper Access Control

CVSS: 6.7v3.1MediumAnalyzed
Published 17-03-2025Last modified 26-02-2026
Open JSON

Vulnerability summary

CVE-2021-22126 is a medium (CVSS 6.7) Improper Access Control vulnerability in fortinet fortiwlc. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.8% of scored vulnerabilities.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.7/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 17-03-2025
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

0.00 pp

From 0.16% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Fortinet1 product
  • fortiwlc≥ 8.5.0, ≤ 8.5.2 | ≥ 8.4.4, ≤ 8.4.8 | ≥ 8.4.0, ≤ 8.4.2 | ≥ 8.3.2, ≤ 8.3.3 | ≥ 8.2.6, ≤ 8.2.7 | ≥ 8.4.0, < 8.5.3 | 8.2.6 | 8.2.7 | 8.3.2 | 8.3.3

1 vendor · 1 product

References

1 links