CVE-2021-41021

CVE-2021-41021 is a high-severity vulnerability in Fortinet Fortinac with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

A privilege escalation vulnerability in FortiNAC versions 8.8.8 and below and 9.1.2 and below may allow an admin user to escalate the privileges to root via the sudo command.

Frequently asked questions

What is CVE-2021-41021?
A privilege escalation vulnerability in FortiNAC versions 8.8.8 and below and 9.1.2 and below may allow an admin user to escalate the privileges to root via the sudo command.
How severe is CVE-2021-41021?
CVE-2021-41021 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-41021 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41021?
CVE-2021-41021 primarily affects Fortinet Fortinac. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-41021?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-41021 published?
CVE-2021-41021 was published on 2021-12-08 and last updated on 2026-06-17.

References

Affected products (12)

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