What’s Vulnerable › Vulnerabilities

CVE-2022-40870

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-11-23 · updated 2026-06-17
• Weakness: CWE-116

Description

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.

Affected products

• Parallels Remote Application Server (Client): 18.0

References

• https://github.com/IthacaLabs/Parallels/blob/main/ParallelsRemoteApplicationServer/HHI_CVE-2022-40870.txt
• https://github.com/IthacaLabs/Parallels/tree/main/ParallelsRemoteApplicationServer
• https://github.com/IthacaLabs/Parallels/blob/main/ParallelsRemoteApplicationServer/HHI_CVE-2022-40870.txt
• https://github.com/IthacaLabs/Parallels/tree/main/ParallelsRemoteApplicationServer

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