CVE-2022-38166 — In F-Secure Endpoint Protection for Windows and macOS before channel with Capric

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-11-25T00:00:00.000Z
• Last modified: 2025-04-29T14:55:54.830Z

09References

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