Microsoft Issues Emergency Update for PrintNightmare Security Flaw 54306h Update Your PC Now

The security flaw has affected all Windows versions. 34564

By Jagmeet Singh | Updated: 7 July 2021 21:47 IST

Microsoft Issues Emergency Update for PrintNightmare Security Flaw, Update Your PC Now

Photo Credit: Pexels/ Maurício Mascaro 5i424g

Windows s are highly recommended to update their machines with the latest security patch

Highlights

Microsoft has released security updates to patch “PrintNightmare” issue
The vulnerability was discovered last week within Windows Print Spooler
Windows 7 and later versions have received security updates

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Microsoft has released security updates for Windows s to patch a security flaw impacting the Windows Print Spooler service. The vulnerability called “PrintNightmare,” that was discovered last week, allows attackers to remotely execute malicious code with system privileges and install programs, make changes in the existing programs, and create new s with full rights. Microsoft has brought the emergency patch for all major Windows versions — starting from Windows 7 to Windows 10. Windows Server s have also been provided with specific security updates to fix the critical flaw.

The list of Windows versions that have Microsoft said that the updates contain protections for the issue that has been recorded as CVE-2021-34527.

Since the Windows Print Spooler service exists on all Windows versions, the vulnerability has impacted all Windows machines. However, the security updates list is currently limited to a few versions initially. Microsoft said that it would update the remaining Windows versions soon.

Microsoft's BSOD Will Be Changing to Black in Windows 11

Meanwhile, s on a Windows machine that is yet to receive the security fix are recommended to manually disable the Print Spooler service or disable inbound remote printing. The Print Spooler can be disabled by ing the “Stop-Service -Name Spooler -Force” and “Set-Service -Name Spooler -StartupType Disabled” commands through PowerShell.

Inbound remote printing, on the other hand, can be disabled by going to Computer Configuration > istrative Templates > Printers and switching off the Allow Print Spooler to accept client connections option. You need to restart the Print Spooler service for the change to take effect.

The PrintNightmare flaw was reported by researchers at Chinese cybersecurity firm Sangfor Technologies last week. It is known as a remote code execution vulnerability that could be exploited to run arbitrary malicious code with system privileges. The flaw exists when the Windows Print Spooler service improperly performs privileged file operations, Microsoft explained.

Windows 11 has been unveiled, but do you need it? We discussed this on Orbital, the Gadgets 360 podcast. Orbital is available on Apple Podcasts, Google Podcasts, Spotify, Amazon Music and wherever you get your podcasts.

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