What is CVE-2016-4963?

CVE-2016-4963 is a medium-severity vulnerability in Xen, classified under Improper Access Control. CVSS score: 4.7/10. Published 2016-06-07.

How severe is CVE-2016-4963?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Vulnerability in Xen

CVE-2016-4963

The libxl device-handling in Xen through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (management tool confusion) by manipulating information in the backend directories in xenstore.

EPSS: 0.003 (22.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Xen — versions 4.0.0, 4.0.1, 4.0.2
N/a — versions n/a

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

cve@mitre.org (mailing-list, x_refsource_MLIST)
cve@mitre.org (vdb-entry, x_refsource_SECTRACK)
cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2016-4963?: CVE-2016-4963 is a medium-severity vulnerability in Xen, classified under Improper Access Control. CVSS score: 4.7/10. Published 2016-06-07.
How severe is CVE-2016-4963?: Medium severity. CVSS v3 base score is 4.7 out of 10.