What is CVE-2015-4856?

CVE-2015-4856 is a vulnerability in Oracle Vm Virtualbox. Published 2015-10-21.

Is CVE-2015-4856 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Oracle Vm Virtualbox

CVE-2015-4856

Unspecified vulnerability in the Oracle VM VirtualBox component in Oracle Virtualization VirtualBox before 4.0.30, 4.1.38, 4.2.30, 4.3.26, and 5.0.0 allows local users to affect availability via unknown vectors related to Core.

Published 2015-10-21 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 4.9 (Medium). Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.004 (31.3th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Oracle Vm Virtualbox — versions 4.0.29, 4.1.37, 4.2.29

Public proof-of-concept exploits

abazhaniuk/Publications

References

www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html (Patch, Vendor Advisory)
www.securitytracker.com/id/1033880 (vdb-entry)

Frequently asked questions

What is CVE-2015-4856?: CVE-2015-4856 is a vulnerability in Oracle Vm Virtualbox. Published 2015-10-21.
Is CVE-2015-4856 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.