How severe is CVE-2021-26089?

CVE-2021-26089 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-26089 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26089?

CVE-2021-26089 affects Fortinet Forticlient. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-26089?

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

When was CVE-2021-26089 published?

CVE-2021-26089 was published on 2021-07-12 and last updated on 2026-06-17.

CVE-2021-26089

CVE-2021-26089 is a medium-severity vulnerability in Fortinet Forticlient with a CVSS 3.x base score of 6.7. 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-59.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
CVSS v2: 7.2
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-59
Affected product: Fortinet Forticlient
Published: 2021-07-12
Last modified: 2026-06-17

Description

An improper symlink following in FortiClient for Mac 6.4.3 and below may allow an non-privileged user to execute arbitrary privileged shell commands during installation phase.

Frequently asked questions

What is CVE-2021-26089?: An improper symlink following in FortiClient for Mac 6.4.3 and below may allow an non-privileged user to execute arbitrary privileged shell commands during installation phase.
How severe is CVE-2021-26089?: CVE-2021-26089 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-26089 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26089?: CVE-2021-26089 affects Fortinet Forticlient. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-26089?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-26089 published?: CVE-2021-26089 was published on 2021-07-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:macos:*:*

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