CVE-2024-21259

Hypervisor code execution via TPM heap overflow

Published Oct 15, 2024 · Updated Oct 16, 2024

Heap-based buffer overflow in Oracle VM VirtualBox before 7.0.22 and before 7.1.2 allows local users to execute code in the hypervisor. The virtual TPM implementation copies user-supplied data into a fixed-length heap buffer without validating the supplied length. Exploitation requires high-privileged code execution in a guest and can compromise the hypervisor and affect resources outside that guest.

CVSS severity7.5
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in Oracle VM VirtualBox before 7.0.22 and before 7.1.2 allows local users to execute code in the hypervisor. The virtual TPM implementation copies user-supplied data into a fixed-length heap buffer without validating the supplied length. Exploitation requires high-privileged code execution in a guest and can compromise the hypervisor and affect resources outside that guest.

The record

CVE
CVE-2024-21259
Published
Oct 15, 2024
Updated
Oct 16, 2024
Vendor
Oracle Corporation
Product
Oracle VM VirtualBox
Classifications
CWE-863, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Oct 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <7.0.22
  2. Affected versionversion=* <7.1.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Oracle Corporation · Oracle VM VirtualBoxversion=* <7.0.22; version=* <7.1.2

Published CVSS scores

7.5OracleCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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