CVE-2021-4007 json
Rapid7 Insight Agent Privilege Escalation
published 2021-12-14 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-33913
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
Rapid7 Insight Agent, versions 3.0.1 to 3.1.2.34, suffer from a local privilege escalation due to an uncontrolled DLL search path. Specifically, when Insight Agent versions 3.0.1 to 3.1.2.34 start, the Python interpreter attempts to load python3.dll at "C:\DLLs\python3.dll," which normally is writable by locally authenticated users. Because of this, a malicious local user could use Insight Agent's startup conditions to elevate to SYSTEM privileges. This issue was fixed in Rapid7 Insight Agent 3.1.2.35. This vulnerability is a regression of CVE-2019-5629.
Patch / fix
- rapid7 insight_agent 3.1.2.35
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- Rapid7 Insight Agent
Classification
- Weakness
-
- CWE-427 Uncontrolled Search Path Element
References
-
docs.rapid7.com
/release-notes/insightagent/20211210/
release-notes, third-party-advisory
-
cve.mitre.org
/cgi-bin/cvename.cgi?name=2019-5629
third-party-advisory
Sources
- CVE List CVE-2021-4007
- NVD CVE-2021-4007
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