CVE-2021-2074

[CVE catalog]

Severity

High · CVSS 8.2CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Published

Jan 20, 2021, 3:15:00 PM UTC

Updated

Feb 4, 2026, 4:29:49 AM UTC

Source

[NVD] · [CVE record]

EPSS

0.50% · Oct 25, 2026

This update for virtualbox fixes the following issues: Version update to 6.1.18 (released January 19 2021) This is a maintenance release. The following items were fixed and/or added: - Nested VM: Fixed hangs when executing SMP nested-guests under certain conditions on Intel hosts (bug #19315, #19561) - OCI integration: Cloud Instance parameters parsing is improved on import (bug #19156) - Network: UDP checksum offloading in e1000 no longer produces zero checksums (bug #19930) - Network: Fixed Host-Only Ethernet Adapter DHCP, guest os can not get IP on host resume (bug #19620) - NAT: Fixed mss parameter handing (bug #15256) - macOS host: Multiple optimizations for BigSur - Audio: Fixed issues with audio playback after host goes to sleep (bug #18594) - Documentation: Some content touch-up and table formatting fixes - Linux host and guest: Support kernel version 5.10 (bug #20055) - Solaris host: Fix regression breaking VGA text mode since version 6.1.0 - Guest Additions: Fixed a build failure affecting CentOS 8.2-2004 and later (bug #20091) - Guest Additions: Fixed a build failure affecting Linux kernels 3.2.0 through 3.2.50 (bug #20006) - Guest Additions: Fixed a VM segfault on copy with shared clipboard with X11 (bug #19226) - Shared Folder: Fixed error with remounting on Linux guests - Fixes CVE-2021-2074, boo#1181197 and CVE-2021-2129, boo#1181198. - Disable build of guest modules. These are included in recent kernels - Fix additional mouse control dialog issues.