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CVE-2025-27816

Arctera InfoScale - Plugin_Host

Veritas CVSS 9.8 Updated March 10, 2026

Executive Risk Summary

"A vulnerability in the Arctera InfoScale Plugin_Host service allows for insecure deserialization of potentially untrusted messages, which can be exploited by an attacker. Disabling the Plugin_Host service manually can eliminate the vulnerability."

Operational Audit Arsenal

Target Type Service
Target Asset Plugin_Host
Standard Path %windir%\System32
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: Plugin_Host (Service)
$Targets = 'Plugin_Host'
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")

Get-ChildItem -Path $SearchPaths -Include $Targets -Recurse -ErrorAction SilentlyContinue | 
Select-Object FullName, @{Name="Version";Expression={$_.VersionInfo.ProductVersion}}

Patch Impact Forecast

Reboot Required Likely

Disaster Recovery services

Internal Work Notes

Vulnerability in Arctera InfoScale Plugin_Host service, recommend disabling service to mitigate risk

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Intelligence Sources

Related Veritas Threats

Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.