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CRITICAL

CVE-2020-15860

CVSS v3

9.9

CRITICAL

EPSS Score

4.0 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2020-15860 yet.

Full record on NVD

Description

Parallels Remote Application Server (RAS) 17.1.1 has a Business Logic Error causing remote code execution. It allows an authenticated user to execute any application in the backend operating system through the web application, despite the affected application not being published. In addition, it was discovered that it is possible to access any host in the internal domain, even if it has no published applications or the mentioned host is no longer associated with that server farm.

Technical details

Published
2020-07-24

Frequently asked questions

What is CVE-2020-15860?

Parallels Remote Application Server (RAS) 17.1.1 has a Business Logic Error causing remote code execution. It allows an authenticated user to execute any application in the backend operating system through the web application, despite the affected application not being published. In addition, it was discovered that it is possible to access any host in the internal domain, even if it has no published applications or the mentioned host is no longer associated with that server farm.

Is CVE-2020-15860 actively exploited?

Active exploitation of CVE-2020-15860 has not been confirmed. Its EPSS score was 4.0% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-15860?

CVE-2020-15860 has a CVSS v3 base score of 9.9 (CRITICAL severity).

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