CVE-2021-34533
vulnerability analysis and mitigation

Overview

A Windows Graphics Component Font Parsing Remote Code Execution Vulnerability, identified as CVE-2021-34533, was discovered and disclosed in August 2021. The vulnerability affects various versions of Microsoft Windows, including Windows 10 and Windows Server installations (Rapid7).

Technical details

The vulnerability has been assigned a CVSS score of 7.0, indicating a moderate to high severity level. The CVSS vector string is (AV:N/AC:M/Au:N/C:P/I:P/A:P), suggesting that the vulnerability is network accessible, requires moderate complexity to exploit, needs no authentication, and can impact partial confidentiality, integrity, and availability (Rapid7).

Impact

This vulnerability could potentially allow remote code execution if successfully exploited, specifically through the Windows Graphics Component's font parsing mechanism (CVE).

Mitigation and workarounds

Microsoft has released security updates to address this vulnerability across multiple Windows versions. The fixes are available through various KB updates including KB5005040 for Windows 10 (1507), KB5005043 for Windows 10 (1607), KB5005030 for Windows 10 (1809), KB5005031 for Windows 10 (1909), KB5005033 for Windows 10 (2004/20H2/21H1), and corresponding updates for Windows Server versions (Rapid7).

Additional resources


SourceThis report was generated using AI

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