Is CVE-2023-29487 actively exploited?

No active exploitation of CVE-2023-29487 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-29487 be exploited remotely?

Yes. CVE-2023-29487 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-29487?

CVE-2023-29487 has a CVSS score of 9.1 (CRITICAL).

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CRITICAL

CVE-2023-29487

CWE-1333Published: December 21, 2023· Updated: Jun 17, 2026

9.1

CVSS v3.1

Official Description

An issue was discovered in Heimdal Thor agent versions 3.4.2 and before on Windows and 2.6.9 and before on macOS, allows attackers to cause a denial of service (DoS) via the Threat To Process Correlation threat prevention module. NOTE: Heimdal asserts this is not a valid vulnerability. Their DNS Security for Endpoint solution includes an optional feature to provide extra information on the originating process that made a DNS request. The lack of process identification in DNS logs is therefore falsely categorized as a DoS issue.

NVD Source

Technical Analysis

CVE-2023-29487 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 full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.1.