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CVE-2021-21972

ID: 44e14b06-a1ec-5b3c-8dec-bae961805c14

STIX ID: report--44e14b06-a1ec-5b3c-8dec-bae961805c14

Feed Name: Arctic Wolf Blog

Threat Score
80/100

Date Published: 2021-02-25

Date Updated: 2026-04-26

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**Executive Summary:** VMware released an advisory and patch for CVE-2021-21972, a critical unauthenticated file-upload RCE in vCenter Server; public proof-of-concept code was posted and widespread exploitation attempts followed, so Arctic Wolf rates the risk as high and strongly urges immediate patching or application of VMware workarounds and network access controls.

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