How severe is CVE-2021-41023?

CVE-2021-41023 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-41023 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41023?

CVE-2021-41023 affects Fortinet Fortisiem. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-41023?

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

When was CVE-2021-41023 published?

CVE-2021-41023 was published on 2021-11-02 and last updated on 2026-06-17.

CVE-2021-41023

CVE-2021-41023 is a medium-severity vulnerability in Fortinet Fortisiem with a CVSS 3.x base score of 5.5. 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-522.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Fortinet Fortisiem
Published: 2021-11-02
Last modified: 2026-06-17

Description

A unprotected storage of credentials in Fortinet FortiSIEM Windows Agent version 4.1.4 and below allows an authenticated user to disclosure agent password due to plaintext credential storage in log files

Frequently asked questions

What is CVE-2021-41023?: A unprotected storage of credentials in Fortinet FortiSIEM Windows Agent version 4.1.4 and below allows an authenticated user to disclosure agent password due to plaintext credential storage in log files
How severe is CVE-2021-41023?: CVE-2021-41023 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-41023 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41023?: CVE-2021-41023 affects Fortinet Fortisiem. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-41023?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-41023 published?: CVE-2021-41023 was published on 2021-11-02 and last updated on 2026-06-17.

References

https://fortiguard.com/advisory/FG-IR-21-175

Affected products (1)

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

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