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Windows Shell Security Feature 0

Cybersecuritynews •Abinaya • February 11, 2026

Microsoft released Microsoft Patch Tuesday updates to address a critical zero-day vulnerability in Windows Shell that is currently being actively exploited in the wild. Tracked as CVE-2026-21510, this security flaw allows remote attackers to bypass essential protection mechanisms, putting millions of Windows users at risk. The vulnerability is classified as a “Security Feature Bypass” with a […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Critical Windows Shell Zero-Day Vulnerability Exploited Microsoft has released updates to address a critical zero-day vulnerability in Windows Shell, tracked as CVE-2026-21510, which is actively being exploited. This security flaw allows remote attackers to bypass essential protection mechanisms, affecting millions of Windows users. The vulnerability was published on February 10, 2026, and added to the CISA KEV due to active exploitation on the same day. 5 sources 24

Extracted Entities

Windows Shell Security Feature 0

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Extracted Entities

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CVEs (1)

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