CVE-2025-27816 Deserialization in n/a
Attackers can execute arbitrary code via insecure deserialization in the Plugin_Host service, which is only active when Disaster Recovery is configured.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-27816?
CVE-2025-27816 is a critical unsafe deserialization vulnerability in n/a, published on 7 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was discovered in the Arctera InfoScale 7.0 through 8.0.2 where a .NET remoting endpoint can be exploited due to the insecure deserialization of potentially untrusted messages. The vulnerability is present in the Windows Plugin_Host service, which runs on all the servers where InfoScale is installed. The service is used only when applications are configured for Disaster Recovery (DR) using the DR wizard. Disabling the Plugin_Host service manually will eliminate the vulnerability.
Weakness: CWE-502
Which versions are affected by CVE-2025-27816?
How do I fix CVE-2025-27816?
No fix has been published for CVE-2025-27816 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-27816 being exploited?
There is no known exploitation of CVE-2025-27816 in the wild and no public exploit code.
Sources
Also known as GHSA-mjh4-pvvj-rg94.