Is CVE-2021-3494 actively exploited?

No active exploitation of CVE-2021-3494 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-3494 be exploited remotely?

Yes. CVE-2021-3494 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-3494?

CVE-2021-3494 has a CVSS score of 5.9 (MEDIUM).

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MEDIUM

CVE-2021-3494

CWE-319Published: April 26, 2021· Updated: Jun 17, 2026

5.9

CVSS v3.1

Official Description

A smart proxy that provides a restful API to various sub-systems of the Foreman is affected by the flaw which can cause a Man-in-the-Middle attack. The FreeIPA module of Foreman smart proxy does not check the SSL certificate, thus, an unauthenticated attacker can perform actions in FreeIPA if certain conditions are met. The highest threat from this flaw is to system confidentiality. This flaw affects Foreman versions before 2.5.0.

NVD Source

Technical Analysis

CVE-2021-3494 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), with a CVSS base score of 5.9.