Read the docs
TI-2020-12480 Aliases CVE-2020-15860GHSA-f2vf-492v-9x6w

Parallels Remote Application Server (RAS) 17.1.1 has a Business Logic Error causing…

Priority MEDIUM 49Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.04009 90th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:parallels:remote_application_server:17.1.1:*:*:*:*:*:*:*17.1.1VulnerableParallels
  • cpe:2.3:a:parallels:remote_application_server:17.1.1:*:*:*:*:*:*:* Versions 17.1.1 Vulnerable ·Parallels

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-15860
  2. 2026-10-03 Alias added: GHSA-f2vf-492v-9x6w

References

Exploit 1

Advisory 1

Other 1

  • TI-2022-19453 The Web Client of Parallels Remote Application Server v18.0 is vulnerable to Host Header… CVSS 3.1HIGH 8.1
  • TI-2023-24642 The Remote Application Server in Parallels RAS before 19.2.23975 does not segment… CVSS 3.1CRITICAL 10.0
  • TI-2017-06858 In the web interface of Parallels Remote Application Server (RAS) 15.5 Build 16140, a… CVSS 3.0HIGH 7.5
  • TI-2025-00332 Link following in Parallels Desktop CVSS 3.0HIGH 7.8
  • TI-2020-07200 Parallels Remote Application Server credentials management errors CVSS 3.1HIGH 7.1
  • TI-2020-18170 Parallels Remote Application Server (RAS) 18 allows remote attackers to discover an… CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences