How severe is CVE-2021-41022?

CVE-2021-41022 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-2021-41022 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41022?

CVE-2021-41022 affects Fortinet Fortisiem. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-41022?

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-2021-41022 published?

CVE-2021-41022 was published on 2021-11-02 and last updated on 2026-06-17.

CVE-2021-41022

CVE-2021-41022 is a high-severity vulnerability in Fortinet Fortisiem 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. The underlying weakness is classified as CWE-269.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Fortinet Fortisiem
Published: 2021-11-02
Last modified: 2026-06-17

Description

A improper privilege management in Fortinet FortiSIEM Windows Agent version 4.1.4 and below allows attacker to execute privileged code or commands via powershell scripts

Frequently asked questions

What is CVE-2021-41022?: A improper privilege management in Fortinet FortiSIEM Windows Agent version 4.1.4 and below allows attacker to execute privileged code or commands via powershell scripts
How severe is CVE-2021-41022?: CVE-2021-41022 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-2021-41022 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41022?: CVE-2021-41022 affects Fortinet Fortisiem. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-41022?: 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-2021-41022 published?: CVE-2021-41022 was published on 2021-11-02 and last updated on 2026-06-17.

References

https://fortiguard.com/advisory/FG-IR-21-176

Affected products (1)

cpe:2.3:a:fortinet:fortisiem:*:*:*:*:*:*:*:*

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