CVE-2021-32584: An improper access control (CWE-284) vulnerability in FortiWLC version 8.6.0, version 8.5.3 and below, version

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2021-32584 is a medium-severity flaw (CVSS 5.3) affecting fortiwlc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An improper access control (CWE-284) vulnerability in FortiWLC version 8.6.0, version 8.5.3 and below, version 8.4.8 and below, version 8.3.3 and below, version 8.2.7 to 8.2.4, version 8.1.3 may allow an unauthenticated and remote attacker to access certain areas of the web management CGI functionality by just specifying the correct URL. The vulnerability applies only to limited CGI resources and might allow the unauthorized party to access conf

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 49%)
CISA exploited list	No
Weakness	CWE-284
Published	2025-03-17
Last modified	2026-06-17

Publisher (CNA): Fortinet, Inc. · Vendor: fortinet

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-03-17 14:15 UTCPublished CVE record published
2026-06-17 03:53 UTCUpdated Record last modified

fortinet fortiwlc UPGRADE

Affected: >= 8.1.3 and < 8.5.4 · 8.6.0

Fixed in: 8.5.4

Safe to downgrade to: a release before 8.1.3

1. Check installed version

apt-cache policy fortiwlc || rpm -q fortiwlc || fortiwlc --version

2. UPGRADE to 8.5.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade fortiwlc

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fortiwlc

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 8.1.3 (Debian / Ubuntu)

apt-cache madison fortiwlc sudo apt install fortiwlc=<VERSION_BEFORE_8.1.3> sudo apt-mark hold fortiwlc

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list fortiwlc sudo dnf downgrade fortiwlc-<VERSION_BEFORE_8.1.3> sudo dnf versionlock add fortiwlc

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-32584?

fortiwlc: upgrade to 8.5.4. Exact commands for each OS are on this page.

Is CVE-2021-32584 being exploited?

CVE-2021-32584 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-32584 affect?

CVE-2021-32584 affects fortiwlc. Severity is medium (CVSS 5.3). An improper access control (CWE-284) vulnerability in FortiWLC version 8.6.0, version 8.5.3 and below, version 8.4.8 and below, version 8.3.3 and below, version 8.2.7 to 8.2.4, version 8.1.3 may allow an unauthenticated and remote attacker

How urgent is CVE-2021-32584?

Priority 36/100. Remotely exploitable, no login, no user action

Software pages

Fortinet vulnerabilities

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References

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