CVE-2021-34481

Plain English Summary

AI-powered analysis for quick understanding

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

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
Confidentiality ImpactHigh
Integrity ImpactHigh
Availability ImpactHigh
ScopeUnchanged

Vector String

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Resources

Search for proof-of-concept code and exploit modules

Official References

Est. Bounty
$4,789($1K-$5K)
Vendor Response
Grade FPatched in 1683 days

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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