SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-31838

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'.

CRITICAL 9.1EPSS 2.09%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.09%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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'.

CVSS 3.1
9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS
2.09% probability · 81th percentile
CISA KEV
Not listed
Weakness
CWE-78
Affected
mcafee/mvision edr
Source
trellixpsirt@trellix.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.