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....

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 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 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 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 patches actively exploited Office zero-day vulnerability

bleepingcomputer.com - 26/Jan 18:20

Microsoft has released emergency security updates to patch a high-severity Office zero-day vulnerability exploited in attacks. [...]

Microsoft patches actively exploited Office zero-day vulnerability

bleepingcomputer.com - 26/Jan 18:20

Microsoft has released emergency security updates to patch a high-severity Office zero-day vulnerability exploited in attacks. [...]

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

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Microsoft patches actively exploited Office zero-day vulnerability

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