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Microsoft Elevation-of-Privilege Vulnerabilities Spiked Again in 2021

Microsoft Elevation-of-Privilege Vulnerabilities Spiked Again in 2021

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The number of privilege escalation bugs in Microsoft’s products increased for the second year in a row in 2021, highlighting the growing risk this vulnerability category poses for organizations.

BeyondTrust recently analyzed data from Microsoft vulnerability disclosures in 2021 and found that 588 — or 49% — of the total 1,212 bugs that the company disclosed gave attackers a way to elevate privileges on compromised systems and networks. The number represented a 5% increase from the 559 privilege escalation bugs in Microsoft products that BeyondTrust counted in 2020, when such bugs also eclipsed all other categories of vulns in the company’s technologies.

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