What is CVE-2017-4948?

CVE-2017-4948 is a high-severity vulnerability in VMware Horizon Client For Windows, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2018-01-05.

How severe is CVE-2017-4948?

High severity. CVSS v3 base score is 7.1 out of 10.

Out-of-bounds Read in VMware Horizon Client For Windows

CVE-2017-4948

VMware Workstation (14.x before 14.1.0 and 12.x) and Horizon View Client (4.x before 4.7.0) contain an out-of-bounds read vulnerability in TPView.dll. On Workstation, this issue in conjunction with other bugs may allow a guest to leak information from host or may allow for a Denial of Service on the Windows OS that runs Workstation. In the case of a Horizon View Client, this issue in conjunction with other bugs may allow a View desktop to leak information from host or may allow for a Denial of Service on the Windows OS that runs the Horizon View Client. Exploitation is only possible if virtual printing has been enabled. This feature is not enabled by default on Workstation but it is enabled by default on Horizon View.

Vulnerability class: Buffer Overflow

Published 2018-01-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (34.1th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.1% 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

VMware Horizon Client For Windows — versions 4.x before 4.7.0
VMware Horizon View
VMware Workstation — versions 12.0.0, 12.5.9, 12.5.2

Weakness classification (CWE)

References

www.securitytracker.com/id/1040109 (VDB Entry, Third Party Advisory, vdb-entry)
www.securitytracker.com/id/1040108 (VDB Entry, Third Party Advisory, vdb-entry)
www.vmware.com/us/security/advisories/VMSA-2018-0003.html (Patch, Vendor Advisory)
www.securityfocus.com/bid/102441 (VDB Entry, Third Party Advisory, vdb-entry)
www.securitytracker.com/id/1040136 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2017-4948?: CVE-2017-4948 is a high-severity vulnerability in VMware Horizon Client For Windows, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2018-01-05.
How severe is CVE-2017-4948?: High severity. CVSS v3 base score is 7.1 out of 10.