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CVE-2023-29487

24
FAUCET Score

CVE-2023-29487 describes a denial-of-service vulnerability affecting Heimdal Thor agent versions 3.4.2 and earlier on Windows, and 2.6.9 and earlier on macOS, specifically within its Threat To Process Correlation module. This vulnerability carries a critical CVSS score of 9.1, indicating it can be exploited remotely with low complexity, potentially leading to a complete loss of availability. Despite the high severity rating, Heimdal Security disputes the validity of this vulnerability, stating it misinterprets a feature of their DNS Security for Endpoint solution. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.5.3CPE matchmatch criteria
cpe:2.3:a:heimdalsecurity:thor:*:*:*:*:*:*:*:*
<= 2.6.9CPE matchmatch criteria
cpe:2.3:a:heimdalsecurity:thor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.66%
Probability of exploitation in next 30 days
EPSS Percentile
47.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0066 is in the 29th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

medium.com / %40drabek.a/weaknesses-in-heimdal-thors-line-of-products-9d0e5095fb93
ExploitThird Party Advisory