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CVE-2021-4007

24
FAUCET Score

CVE-2021-4007 is a local privilege escalation vulnerability affecting Rapid7 Insight Agent versions 3.0.1 through 3.1.2.34. It stems from an uncontrolled DLL search path, allowing a malicious local user to load a crafted python3.dll from a writable directory during agent startup. This can lead to elevation of privileges to SYSTEM. The vulnerability has a CVSS score of 7.8 (HIGH), indicating a local attack vector with low attack complexity and the potential for high impact on confidentiality, integrity, and availability. It is a regression of a previous vulnerability, CVE-2019-5629. Currently, there is no evidence of active exploitation, no public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage. A fix was released in Rapid7 Insight Agent version 3.1.2.35.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0.1, < 3.1.2.35CPE matchmatch criteria
cpe:2.3:a:rapid7:insight_agent:*:*:*:*:*:*:*:*
>= 3.1.2.34, <= 3.1.2.34CPE match
cpe:2.3:a:rapid7:insight_agent:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 62nd percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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

cve.mitre.org / cgi-bin/cvename.cgi
Third Party Advisory
docs.rapid7.com / release-notes/insightagent/20211210
Release NotesThird Party Advisory