How severe is CVE-2021-24011?

CVE-2021-24011 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2021-24011 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24011?

CVE-2021-24011 affects Fortinet Fortinac. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24011?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-24011 published?

CVE-2021-24011 was published on 2021-05-10 and last updated on 2026-06-17.

CVE-2021-24011

CVE-2021-24011 is a medium-severity vulnerability in Fortinet Fortinac with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 9.0
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Fortinet Fortinac
Published: 2021-05-10
Last modified: 2026-06-17

Description

A privilege escalation vulnerability in FortiNAC version below 8.8.2 may allow an admin user to escalate the privileges to root by abusing the sudo privileges.

Frequently asked questions

What is CVE-2021-24011?: A privilege escalation vulnerability in FortiNAC version below 8.8.2 may allow an admin user to escalate the privileges to root by abusing the sudo privileges.
How severe is CVE-2021-24011?: CVE-2021-24011 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2021-24011 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24011?: CVE-2021-24011 affects Fortinet Fortinac. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24011?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24011 published?: CVE-2021-24011 was published on 2021-05-10 and last updated on 2026-06-17.

References

https://fortiguard.com/advisory/FG-IR-20-038

Affected products (1)

cpe:2.3:a:fortinet:fortinac:*:*:*:*:*:*:*:*

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