CVE-2026-35245: Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core)

Routine

HIGH 7.5REMOTEDOWNGRADE

CVE-2026-35245 is a high-severity flaw (CVSS 7.5) affecting vm virtualbox. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via RDP to compromise Oracle VM VirtualBox. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle VM VirtualBox. CVSS 3.1 Bas

Why this priority

High severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-04-21
Last modified	2026-10-25

Publisher (CNA): Oracle · Vendor: oracle

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-21 21:16 UTCPublished CVE record published
2026-10-25 23:10 UTCUpdated Record last modified

oracle vm virtualbox DOWNGRADE

Affected: 7.2.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.2.6

1. Check installed version

apt-cache policy vm-virtualbox || rpm -q vm-virtualbox || vm-virtualbox --version

2. No fixed release: DOWNGRADE to a release before 7.2.6 (Debian / Ubuntu)

apt-cache madison vm-virtualbox sudo apt install vm-virtualbox=<VERSION_BEFORE_7.2.6> sudo apt-mark hold vm-virtualbox

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list vm-virtualbox sudo dnf downgrade vm-virtualbox-<VERSION_BEFORE_7.2.6> sudo dnf versionlock add vm-virtualbox

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35245?

vm virtualbox: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-35245 being exploited?

CVE-2026-35245 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35245 affect?

CVE-2026-35245 affects vm virtualbox. Severity is high (CVSS 7.5). Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via RDP to

How urgent is CVE-2026-35245?

Priority 35/100. High severity; Remotely exploitable, no login, no user action

Software pages

WinRM and RDP vulnerabilities · VirtualBox vulnerabilities

Related CVEs

CVE-2026-35275 HIGH 7.5 DOWNGRADE Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Shared Folders)
CVE-2026-46873 HIGH 7.5 DOWNGRADE Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: VMSVGA device)
CVE-2026-46768 MEDIUM 6.0 DOWNGRADE Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: VMSVGA device)
CVE-2026-46825 MEDIUM 6.0 DOWNGRADE Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: VMSVGA device)
CVE-2026-46877 MEDIUM 6.0 DOWNGRADE Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: VMSVGA device)

References

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