CVE-2021-34481
Plain English Summary
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This vulnerability allows an attacker to run any code they choose on a Windows 10 machine with full system privileges, meaning they could install software, access or delete files, and create new user accounts. It requires the attacker to exploit the Windows Print Spooler service, which is often running on the system, making it a significant risk if not patched.
Technical Description
<p>A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p><strong>UPDATE</strong> August 10, 2021: Microsoft has completed the investigation and has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. This security update changes the Point and Print default behavior; please see <a href="https://support.microsoft.com/help/5005652">KB5005652</a>.</p>
CVSS Vector Analysis
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploit Resources
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Official References
Quick Information
Published
Jul 16, 2021
over 4 years ago
Last Modified
Feb 24, 2026
about 1 month ago
Vendor
microsoft
Product
windows 10
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