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CVE-2021-34481

Windows Print Spooler Remote Code Execution Vulnerability

Published: Jul 16, 2021Updated: Aug 10, 2026 Sources: CVE List NVD BDUCWE-269
8.8HIGH
NVD MITRE
EPSS Score
47.7%
Top 1.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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. UPDATE 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 KB5005652.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-269

Affected Products

Microsoft Corp
commercial·USaka microsoft, microsoft corporation
Windows Server 2012 (Server Core installation)On-premOS
Operating Systems / windows
Windows Server 2012 R2 (Server Core installation)On-premOS
Operating Systems / windows
Windows Server 2016 (Server Core installation)On-premOS
Operating Systems / windows
Windows 8.1On-premOS
Operating Systems / windows
Windows RT 8.1On-premOS
Operating Systems / windows
Windows 10 RTMOn-premOS
Operating Systems / windows
Windows 7 Service Pack 1On-premOS
Operating Systems / windows
Windows Server 2008 R2 Service Pack 1 (Server Core installation)On-premOS
Operating Systems / windows
and 52 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2021-34481?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34481
msrc.microsoft.com
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34481
portal.msrc.microsoft.com

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