English => News => Topic started by: Redaktion on January 28, 2026, 13:47:04
Title: Microsoft issues out-of-band patch for actively exploited Microsoft Office zero-day vulnerability
Post by: Redaktion on January 28, 2026, 13:47:04
Microsoft has released an out-of-band security update to fix an actively exploited Microsoft Office vulnerability tracked as CVE-2026-21509. The flaw allows attackers to bypass Office security protections via malicious documents and has been added to CISA's Known Exploited Vulnerabilities catalog.