Vulnerability in Microsoft Windows

CVE-2020-3991

VMware Horizon Client for Windows (5.x before 5.5.0) contains a denial-of-service vulnerability due to a file system access control issue during install time. Successful exploitation of this issue may allow an attacker to overwrite certain admin privileged files through a symbolic link attack at install time. This will result into a denial-of-service condition on the machine where Horizon Client for Windows is installed.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (26.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-3991: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

References

Frequently asked questions

What is CVE-2020-3991?
CVE-2020-3991 is a high-severity vulnerability in Microsoft Windows. CVSS score: 7.1/10. Published 2020-10-16.
How severe is CVE-2020-3991?
High severity. CVSS v3 base score is 7.1 out of 10.