CVE-2017-4897

VMware Horizon DaaS before 7.0.0 contains a vulnerability that exists due to insufficient validation of data. An attacker may exploit this issue by tricking DaaS client users into connecting to a malicious server and sharing all their drives and devices. Successful exploitation of this vulnerability requires a victim to download a specially crafted RDP file through DaaS client by clicking on a malicious link.

Published: 2017-05-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2017-4897 is rated Moderate Risk (44.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.15%). Core evidence: EPSS rose +1.04% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-4897

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 2026-06-15 0.11% 1.15% +1.04%
2 2025-03-30 0.16% 0.11% -0.05%
3 2025-03-29 0.16%

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-4897

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.0 MEDIUM
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
1.8 3.6 [email protected]
7.1 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
8.6 6.9 [email protected]

Weakness enumeration for CVE-2017-4897

Affected software / configurations for CVE-2017-4897

Vendor Product Version Raw CPE
vmware horizon_daas <= 6.1.6 cpe:2.3:a:vmware:horizon_daas:*:*:*:*:*:*:*:*

References for CVE-2017-4897

cvelogic Threat Intelligence