High [CVE-2021-34481] Windows Print Spooler Remote Code Execution Vulnerability
This high-severity Microsoft Server advisory covers CVE-2021-34481 affecting Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2012 (Server Core installation).
Android app · Google Play
Monitor future Microsoft Server CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.
Summary
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.
Affected products named by the advisory: Windows Server 2008 R2 Service Pack 1; Windows Server 2008 R2 Service Pack 1 (Server Core installation); Windows Server 2008 Service Pack 2; Windows Server 2008 Service Pack 2 (Server Core installation); and 10 more.
Affected products named by the advisory: Windows Server 2012 (Server Core installation); Windows Server 2012 R2 (Server Core installation); Windows Server 2016 (Server Core installation); Windows Server 2019 (Server Core installation); and 2 more.
- Windows 10 Version 1507 10.0.10240.0 before 10.0.10240.19022
- Windows 10 Version 1607 10.0.14393.0 before 10.0.14393.4583
- Windows 10 Version 1809 10.0.17763.0 before 10.0.17763.2114
- Windows 10 Version 1809 10.0.0 before 10.0.17763.2114
- Windows 10 Version 1909 10.0.0 before 10.0.18363.1734
- Windows 10 Version 2004 10.0.0 before 10.0.19041.1165
- Windows 10 Version 20H2 10.0.0 before 10.0.19042.1165
- Windows 10 Version 21H1 10.0.0 before 10.0.19043.1165
- Windows 7 6.1.0 before 6.1.7601.25685
- Windows 7 Service Pack 1 6.1.0 before 6.1.7601.25685
- Windows 8.1 6.3.0 before 6.3.9600.20094
- Windows Server 2008 R2 Service Pack 1 6.1.7601.0 before 6.1.7601.25685
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 10.0.10240.19022
- 10.0.14393.4583
- 10.0.17763.2114
- 10.0.18363.1734
- 10.0.19041.1165
- 10.0.19042.1165
- 10.0.19043.1165
- 6.1.7601.25685
- 6.3.9600.20094
- 6.0.6003.21192
- 6.2.9200.23435
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- 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.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.