VMware Horizon Client for Linux (4.x before 4.8.0 and prior) contains a local privilege escalation vulnerability due to insecure usage of SUID binary. Successful exploitation of this issue may allow unprivileged users to escalate their privileges to root on a Linux machine where Horizon Client is installed.
Conclusion & alert: CVE-2018-6964 is rated Low Risk (36.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.05%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-06-16 | 0.06% | 0.05% | -0.01% |
| 2 | 2025-03-17 | 0.04% | 0.06% | +0.01% |
| 3 | 2023-03-07 | — | 0.04% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 3.0 | HIGH |
|
1.8 | 5.9 | [email protected] |
| 7.2 | 2.0 | HIGH |
|
3.9 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| vmware | horizon_client | >= 4.0.0, < 4.8.0 | cpe:2.3:a:vmware:horizon_client:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.securityfocus.com/bid/104315 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1040989 | Third Party Advisory VDB Entry |
| https://www.vmware.com/security/advisories/VMSA-2018-0014.html | Vendor Advisory |