Zero Day Initiative

3 min read

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Microsoft addresses 137 vulnerabilities in May’s Patch Tuesday, including 13 rated critical

Cyber Scoop May 12, 2026

Microsoft addresses 137 vulnerabilities in May’s Patch Tuesday, including...

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Microsoft’s monthly Patch Tuesday is first in 6 months with no actively exploited zero-days

Cyber Scoop March 10, 2026

Microsoft’s monthly Patch Tuesday is first in 6 months...

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Microsoft Patch Tuesday matches last year’s zero-day high with six actively exploited vulnerabilities

Cyber Scoop February 10, 2026

Microsoft Patch Tuesday matches last year’s zero-day high with...

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Microsoft Patch Tuesday addresses 112 defects, including one actively exploited zero-day

Cyber Scoop January 13, 2026

Microsoft Patch Tuesday addresses 112 defects, including one actively...

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• apt
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Cisco customers hit by fresh wave of zero-day attacks from China-linked APT

Cyber Scoop December 18, 2025

Cisco customers hit by fresh wave of zero-day attacks...

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• Cybersecurity
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Microsoft’s last Patch Tuesday of 2025 addresses 57 defects, including one zero-day

Cyber Scoop December 9, 2025

Microsoft’s last Patch Tuesday of 2025 addresses 57 defects,...

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5 min read

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Attackers hit React defect as researchers quibble over proof

Cyber Scoop December 5, 2025

Attackers hit React defect as researchers quibble over proof...

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3 min read

• Apple
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Apple addresses dozens of vulnerabilities in latest software for iPhones, iPads and Macs

Cyber Scoop September 16, 2025

Apple addresses dozens of vulnerabilities in latest software for...

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Microsoft Patch Tuesday addresses 81 vulnerabilities, none actively exploited

Cyber Scoop September 9, 2025

Microsoft Patch Tuesday addresses 81 vulnerabilities, none actively exploited...

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3 min read

• Cisco
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Cisco network access security platform vulnerabilities under active exploitation

Cyber Scoop July 23, 2025

Cisco network access security platform vulnerabilities under active exploitation...

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