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April 2021

Vulnerabilities first published in this month (UTC), newest first.

← March 2021 2021 / April May 2021 →

All Critical High Medium Low Exploited only Public exploit

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High 8.8

CVE-2021-21220 Exploited Public exploit EPSS 70%

Insufficient validation of untrusted input in V8 in Google Chrome prior to 89.0.4389.128 allowed a remote attacker to p…

Google Chrome chromium chromium-browser Browsers Debian Ubuntu Alpine

Apr 26, 2021
KEV Nov 3, 2021
High 8.8

CVE-2021-3493 Exploited Public exploit EPSS 49%

The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting …

Ubuntu Linux kernel linux-raspi2 linux-hwe Linux Debian Ubuntu

Apr 17, 2021
KEV Oct 20, 2022
High 7.8

CVE-2021-28310 Exploited Public exploit

Win32k Elevation of Privilege Vulnerability

Win32k Elevation of Privilege Vulnerability

Microsoft Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 Windows

Apr 13, 2021
KEV Nov 3, 2021
High 7.0

CVE-2021-1782 Exploited Public exploit

A race condition was addressed with improved locking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-0…

Apple macOS iOS and iPadOS macOS iOS

Apr 2, 2021
KEV Nov 3, 2021