Cybernews

New Microsoft Office zero-day under active attack, patch now

Microsoft rushed an emergency Patch Tuesday fix after a new Office zero-day began spreading in active attacks. CISA warns ...

Microsoft Issues Emergency Patch for Active Office Zero-Day

Microsoft released an emergency Office patch to fix an actively exploited zero-day flaw that lets attackers bypass security ...
WinBuzzer

Microsoft Patches Office Zero-Day Under Active Exploitation

Microsoft has released an emergency patch for CVE-2026-21509, a zero-day Office vulnerability under active exploitation that ...
SecurityWeek

Microsoft Patches Office Zero-Day Likely Exploited in Targeted Attacks

Microsoft released patches for CVE-2026-21509, a new Office zero-day vulnerability that can be exploited to bypass security ...
The Hacker News

Microsoft Office Zero-Day (CVE-2026-21509) - Emergency Patch Issued for Active Exploitation

Microsoft released out-of-band patches for an actively exploited Microsoft Office zero-day, CVE-2026-21509, a security ...
Infosecurity Magazine

Microsoft Releases Patch for Office Zero Day Amid Evidence of Exploitation

The tech giant released a patch in a January 26 advisory for the flaw which has been summarized as an over-reliance on ...
Infosecurity Magazine

Zero-Day Exploits Surge, Nearly 30% of Flaws Attacked Before Disclosure

VulnCheck analysts found that vulnerabilities exploited before being publicly disclosed rose from 23.6% in 2024 to 28.96% in 2025 ...
Dark Reading

Exploited Zero-Day Flaw in Cisco UC Could Affect Millions

Mass scanning is underway for CVE-2026-20045, which Cisco tagged as critical because successful exploitation could lead to a ...
Hosted on MSN

Mass Exploitation: Hackers Hit Zero-Day Flaw in Microsoft's SharePoint

PCMag editors select and review products independently. If you buy through affiliate links, we may earn commissions, which help support our testing. Yikes: Hackers are exploiting a newly discovered ...