How severe is CVE-2021-42754?

CVE-2021-42754 has a CVSS 3.x base score of 3.2, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-42754 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-42754?

CVE-2021-42754 primarily affects Fortinet Forticlient. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-42754?

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

When was CVE-2021-42754 published?

CVE-2021-42754 was published on 2021-11-02 and last updated on 2026-06-17.

CVE-2021-42754

CVE-2021-42754 is a low-severity vulnerability in Fortinet Forticlient with a CVSS 3.x base score of 3.2. 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-94.

Key facts

Severity: Low (CVSS 3.x base score 3.2)
CVSS v2: 3.5
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Fortinet Forticlient
Published: 2021-11-02
Last modified: 2026-06-17

Description

An improper control of generation of code vulnerability [CWE-94] in FortiClientMacOS versions 7.0.0 and below and 6.4.5 and below may allow an authenticated attacker to hijack the MacOS camera without the user permission via the malicious dylib file.

Frequently asked questions

What is CVE-2021-42754?: An improper control of generation of code vulnerability [CWE-94] in FortiClientMacOS versions 7.0.0 and below and 6.4.5 and below may allow an authenticated attacker to hijack the MacOS camera without the user permission via the malicious dylib file.
How severe is CVE-2021-42754?: CVE-2021-42754 has a CVSS 3.x base score of 3.2, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-42754 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-42754?: CVE-2021-42754 primarily affects Fortinet Forticlient. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-42754?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-42754 published?: CVE-2021-42754 was published on 2021-11-02 and last updated on 2026-06-17.

References

https://fortiguard.com/advisory/FG-IR-21-079

Affected products (2)

cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:macos:*:*
cpe:2.3:a:fortinet:forticlient:7.0.0:*:*:*:*:macos:*:*

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