Severity
High
Analysis Summary
CVE-2023-21809 CVSS:7.8
Microsoft Defender for Endpoint could allow a remote attacker to bypass security restrictions. By persuading a victim to run a specially-crafted file, an attacker could exploit this vulnerability to bypass the Windows Defender Attack Surface Reduction blocking feature.
CVE-2023-23379 CVSS:6.4
Microsoft Defender for IoT could allow a local authenticated attacker to gain elevated privileges on the system. By executing a specially-crafted program, an authenticated attacker could exploit this vulnerability to gain administrative privileges.
Impact
- Security Bypass
- Privilege Escalation
Indicators Of Compromise
CVE
- CVE-2023-21809
- CVE-2023-23379
Affected Vendors
Microsoft
Affected Products
- Microsoft Malware Protection Engine
- Microsoft Defender for IoT
Remediation
Use Microsoft Automatic Update to apply the appropriate patch for your system, or the Microsoft Security Update Guide to search for available patches.