Command injection through environment variable in MVISION EDR
Priority MEDIUM 43CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.
Summary
A command injection vulnerability in MVISION EDR (MVEDR) prior to 3.4.0 allows an authenticated MVEDR administrator to trigger the EDR client to execute arbitrary commands through PowerShell using the EDR functionality 'execute reaction'.
Why it matters now
EPSS 0.02087 81st percentileScored 2026-11-07
Fix Fixed MVISION EDR (McAfee,LLC): 3.4.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA MVISION EDR (McAfee,LLC) Fixed in 3.4.0
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31838
- 2026-10-03 Alias added: GHSA-hg4j-hgh6-fp6f
References
Sources
- CVE-2021-31838 · CVE Program
- CVE-2021-31838 · NVD
- FIRST EPSS
- GHSA-hg4j-hgh6-fp6f · GitHub Advisory Database · CC BY 4.0
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