CVE-2020-15860
CVE-2020-15860 is a critical-severity vulnerability in Parallels Remote Application Server with a CVSS 3.x base score of 9.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Critical (CVSS 3.x base score 9.9)
- CVSS v2: 6.5
- EPSS exploit prediction: 4% (89th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Parallels Remote Application Server
- Published:
- Last modified:
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.
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.
- How severe is CVE-2020-15860?
- CVE-2020-15860 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-15860 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-15860?
- CVE-2020-15860 affects Parallels Remote Application Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-15860?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-15860 published?
- CVE-2020-15860 was published on 2020-07-24 and last updated on 2026-06-17.
References
- https://kb.parallels.com/en/125112
- https://www.coresecurity.com/core-labs/advisories/parallels-ras-os-command-execution
- https://www.parallels.com/products/ras/remote-application-server/
Affected products (1)
- cpe:2.3:a:parallels:remote_application_server:17.1.1:*:*:*:*:*:*:*
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