CVE-2020-0951

Description

<p>A security feature bypass vulnerability exists in Windows Defender Application Control (WDAC) which could allow an attacker to bypass WDAC enforcement. An attacker who successfully exploited this vulnerability could execute PowerShell commands that would be blocked by WDAC.</p> <p>To exploit the vulnerability, an attacker need administrator access on a local machine where PowerShell is running. The attacker could then connect to a PowerShell session and send commands to execute arbitrary code.</p> <p>The update addresses the vulnerability by correcting how PowerShell commands are validated when WDAC protection is enabled.</p>

How to fix CVE-2020-0951

To remediate CVE-2020-0951, upgrade the affected package to a fixed version below.

• —upgrade to 7.0.8 or later

Is CVE-2020-0951 being exploited?

Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• >= 7.0.0, < 7.0.8, >= 7.1.0, < 7.1.5 | >= 7.0.8, <= 7.0.8

CVSS scores

References (2)

• WEBnvd.nist.gov/vuln/detail/CVE-2020-0951
• WEBportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0951