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TI-2022-19453 Aliases CVE-2022-40870GHSA-3mv9-6gw5-j7q6

The Web Client of Parallels Remote Application Server v18.0 is vulnerable to Host Header…

Priority HIGH 70CWE-116Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

The Web Client of Parallels Remote Application Server v18.0 is vulnerable to Host Header Injection attacks. This vulnerability allows attackers to execute arbitrary commands via a crafted payload injected into the Host header.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.02156 82nd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

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:18.0:*:*:*:*:*:*:*18.0VulnerableParallels
  • cpe:2.3:a:parallels:remote_application_server:18.0:*:*:*:*:*:*:* Versions 18.0 Vulnerable ·Parallels

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-40870
  2. 2026-10-03 Alias added: GHSA-3mv9-6gw5-j7q6

References

Exploit 2

  • TI-2020-12480 Parallels Remote Application Server (RAS) 17.1.1 has a Business Logic Error causing… CVSS 3.1CRITICAL 9.9
  • 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