How severe is CVE-2022-38166?

CVE-2022-38166 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-38166 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-38166?

CVE-2022-38166 affects F-secure Elements Endpoint Protection. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-38166?

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-2022-38166 published?

CVE-2022-38166 was published on 2022-11-25 and last updated on 2026-06-17.

CVE-2022-38166

CVE-2022-38166 is a high-severity vulnerability in F-secure Elements Endpoint Protection with a CVSS 3.x base score of 7.5. 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-248.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-248
Affected product: F-secure Elements Endpoint Protection
Published: 2022-11-25
Last modified: 2026-06-17

Description

In F-Secure Endpoint Protection for Windows and macOS before channel with Capricorn database 2022-11-22_07, the aerdl.dll unpacker handler crashes. This can lead to a scanning engine crash, triggerable remotely by an attacker for denial of service.

Frequently asked questions

What is CVE-2022-38166?: In F-Secure Endpoint Protection for Windows and macOS before channel with Capricorn database 2022-11-22_07, the aerdl.dll unpacker handler crashes. This can lead to a scanning engine crash, triggerable remotely by an attacker for denial of service.
How severe is CVE-2022-38166?: CVE-2022-38166 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-38166 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-38166?: CVE-2022-38166 affects F-secure Elements Endpoint Protection. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-38166?: 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-2022-38166 published?: CVE-2022-38166 was published on 2022-11-25 and last updated on 2026-06-17.

References

https://www.f-secure.com/en/home/support/security-advisories/cve-2022-38166

Affected products (1)

cpe:2.3:a:f-secure:elements_endpoint_protection:-:*:*:*:*:*:*:*

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