Threat Response – Citrix XenMobile Server



On the 11th of August Citrix released patches for critical vulnerabilities in the XenMobile Server [1]. XenMobile Server is a solution for mobile device management, such as phones, tablets and laptops. Several vulnerabilities have been registered in the patches with identifiers: CVE-2020-8208, CVE-2020-8209, CVE-2020-8210, CVE-2020-8211, CVE-2020-8212. These vulnerabilities allow an attacker to execute arbitrary code on the server. Currently, there are no signs of active exploitation. In this message we inform you of the threat and potential mitigations.


The vulnerabilities allow an attacker to run arbitrary code on the server with administrator or root permissions. This makes the impact high.


Because XenMobile Server has to be reachable for the managed devices, it is typically accessible from external networks, allowing attackers to remotely exploit the vulnerabilities.

No public/active exploit code is available currently. This is expected in the short term, as the patches that were released can be used to reverse engineer the vulnerability [2]. Northwave assesses the risk of this vulnerability to be high.


Northwave recommends installing the patch immediately. There are no other known mitigation available at the moment.

Northwave will monitor any developments regarding this vulnerability. If new critical information about this threat arises, we will reach out to you. If you need additional information you can call us by phone or send us an email.

E-mail: [email protected]
Do you have an incident right now? Call our CERT number: +31 (0)85 043 7909 or 0800-1744 (alleen vanuit Nederland)

Disclaimer applies, see below.



[2]: (Dutch)

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