PT-2026-3736 · Oracle+1 · Virtualbox+1

Fstmpr · Published 2026-01-01 · Updated 2026-05-12 · CVE-2026-21989

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L

Name of the Vulnerable Software and Affected Versions Oracle VM VirtualBox versions 7.1.14 and 7.2.4

Description An easily exploitable issue exists in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). A high-privileged attacker with access to the infrastructure where Oracle VM VirtualBox runs can compromise the software. Successful exploitation may lead to unauthorized creation, deletion, or modification of critical data, complete access to Oracle VM VirtualBox accessible data, and a partial denial of service. Attacks may significantly impact additional products.

Recommendations Update Oracle VM VirtualBox to a version newer than 7.2.4. Update Oracle VM VirtualBox to a version newer than 7.1.14.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2026-00720

CVE-2026-21989

Affected Products

Virtualbox

Red Os

References · 19

• https://cve.org/CVERecord?id=CVE-2026-21989 · Security Note
• https://osv.dev/vulnerability/CVE-2026-21989 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-00720 · Security Note
• https://oracle.com/security-alerts/cpujan2026.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21989 · Security Note
• https://ubuntu.com/security/CVE-2026-21989 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-21989 · Vendor Advisory
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti-red-os-8-0/uyazvimost-virtualbox-kmod-cve-2026-21989-8.0 · Note
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti-red-os-8-0/uyazvimost-virtualbox-cve-2026-21989-8.0 · Note
• https://twitter.com/CVEnew/status/2013740393058197825 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2013785076325089717 · Twitter Post
• https://twitter.com/TheHackerWire/status/2013740444656791830 · Twitter Post
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti-red-os-8-0/uyazvimost-virtualbox-guest-additions-cve-2026-21989-8.0 · Note
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti/uyazvimost-virtualbox-guest-additions-cve-2026-21989-7.3 · Note
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti/uyazvimost-virtualbox-cve-2026-21989-7.3 · Note