SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-3998

VMware Horizon Client for Windows (5.x prior to 5.5.0) contains an information disclosure vulnerability.

MEDIUM 6.5EPSS 1.28%

Does this matter?

Lower severity and a low EPSS score (1.28%). Track it; it rarely justifies an emergency change on its own.

Description

VMware Horizon Client for Windows (5.x prior to 5.5.0) contains an information disclosure vulnerability. A malicious attacker with local privileges on the machine where Horizon Client for Windows is installed may be able to retrieve hashed credentials if the client crashes.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
1.28% probability · 70th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
vmware/horizon client
Source
security@vmware.com
EPSS trend
0%3%5%26 October 2026: 1.28%26 October 202626 October 2026

EPSS 1.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.