CVE-2023-29487
Heimdalsecurity Thor vulnerability
- Published21 Dec 2023
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.
CVSS 3.1 breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:HAffected products
Remediation
No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.
Frequently asked
Is CVE-2023-29487 being actively exploited?
CVE-2023-29487 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.66%.
How severe is CVE-2023-29487?
CVE-2023-29487 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.66% probability of exploitation.
Which products are affected by CVE-2023-29487?
Affected products include Heimdalsecurity Thor.
How do I fix CVE-2023-29487?
Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2023-29487 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.