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Microsoft patches actively exploited Windows zero-day flaw

posted onFebruary 11, 2021
by l33tdawg
IT Pro
Credit: IT Pro

Microsoft has patched 56 flaws in its latest Patch Tuesday round of fixes including a critical vulnerability in the win32k component of Windows 10 that could allow hackers to escalate privileges on a targeted device.

The critical zero-day flaw, tracked as CVE-2021-1732, is under active exploitation and is rated 7.8 on the CVSS threat severity scale. It’s been exploited to allow hackers to run malicious code on a targeted system with elevated privileges, according to researchers with DBAPPSecurity, who first discovered the flaw.

The “high quality” and “sophisticated” exploit relies on a win32k callback that can be used to escape the sandbox of the Internet Explorer or Adobe Reader apps. It can be triggered on the latest version of Windows 10.

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Microsoft Security

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