Windows Print Spooler: remote code execution (CVE-2021-34527)

high severity · exploited in the wild · published 2021-07-01

A crafted file, page or request can make Windows run attacker code on the PC. Attackers already use this flaw in the wild.

Fixed in: 10.0.22621.674

CVE: CVE-2021-34527

Source: Microsoft (MSRC)

Am I affected?

You are affected if the installed version is older than 10.0.22621.674. Check the version you have and update to 10.0.22621.674 or later. The fixed version is verified against a vendor or advisory source.

Get the fix

FixLane has a reviewed fix procedure for this incident: a read-only check first, then the fix. Ask the Telegram bot, or connect an AI agent to the FixLane MCP server and call get_fix_prompt with incident id 1460 and your operating system.