Is CVE-2017-6466 actively exploited?

No active exploitation of CVE-2017-6466 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-6466 be exploited remotely?

Yes. CVE-2017-6466 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-6466?

CVE-2017-6466 has a CVSS score of 8.1 (HIGH).

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HIGH

CVE-2017-6466

CWE-20Published: March 11, 2017· Updated: Jun 17, 2026

8.1

CVSS v3.1

Official Description

F-Secure Software Updater 2.20, as distributed in several F-Secure products, downloads installation packages over plain http and does not perform file integrity validation after download. Man-in-the-middle attackers can replace the file with their own executable which will be executed under the SYSTEM account. Note that when Software Updater is configured to install updates automatically, it checks if the downloaded file is digitally signed by default, but does not check the author of the signature. When running in manual mode (default), no signature check is performed.

NVD Source

Technical Analysis

CVE-2017-6466 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.