Microsoft Patches Office Zero-Day Likely Exploited in Targeted Attacks

itsecuritynews.info - 27/Jan 09:15

The vulnerability is tracked as CVE-2026-21509 and it can be exploited to bypass security features. The post Microsoft Patches Office Zero-Day...

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

itsecuritynews.info - 27/Jan 09:15

Microsoft on Monday issued out-of-band security patches for a high-severity Microsoft Office zero-day vulnerability exploited in attacks. The...

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

itsecuritynews.info - 27/Jan 09:15

Microsoft on Monday issued out-of-band security patches for a high-severity Microsoft Office zero-day vulnerability exploited in attacks. The...

Microsoft reveals actively exploited Office zero-day, provides emergency fix (CVE-2026-21509)

itsecuritynews.info - 27/Jan 09:34

Microsoft released emergency Office security updates to fix a security feature bypass vulnerability (CVE-2026-21509) that its threat intelligence and...

Microsoft reveals actively exploited Office zero-day, provides emergency fix (CVE-2026-21509)

itsecuritynews.info - 27/Jan 09:34

Microsoft released emergency Office security updates to fix a security feature bypass vulnerability (CVE-2026-21509) that its threat intelligence and...

Emergency Microsoft update fixes in-the-wild Office zero-day

securityaffairs.co - 26/Jan 19:03

Microsoft issued emergency updates to fix an actively exploited Office zero-day, CVE-2026-21509, affecting Office 2016–2024 and Microsoft 365 Apps....

Fortinet Patches Exploited FortiCloud SSO Authentication Bypass

itsecuritynews.info - 28/Jan 08:32

Tracked as CVE-2026-24858, the bug allows attackers to log into devices registered to other FortiCloud accounts. The post Fortinet Patches Exploited...

Emergency Microsoft update fixes in-the-wild Office zero-day

itsecuritynews.info - 26/Jan 19:36

Microsoft issued emergency updates to fix an actively exploited Office zero-day, CVE-2026-21509, affecting Office 2016–2024 and Microsoft 365 Apps....

Emergency Microsoft update fixes in-the-wild Office zero-day

itsecuritynews.info - 26/Jan 19:36

Microsoft issued emergency updates to fix an actively exploited Office zero-day, CVE-2026-21509, affecting Office 2016–2024 and Microsoft 365 Apps....

Microsoft releases update to address zero-day vulnerability in Microsoft Office

itsecuritynews.info - 29/Jan 15:15

Microsoft has published three out-of-band (OOB) updates so far in January 2026. One of these updates was released to address a...

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Microsoft Patches Office Zero-Day Likely Exploited in Targeted Attacks

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Microsoft Patches Office Zero-Day Likely Exploited in Targeted Attacks

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