UpdateMountServer · Veeam VBR v13 MCP Server MCP

WHAT IT DOES

What UpdateMountServer does on Veeam VBR v13 MCP Server

AI agents use UpdateMountServer to create or update resources in Veeam VBR v13 MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Veeam VBR v13 MCP Server environment.

WHY IT NEEDS A POLICY

Why UpdateMountServer needs a policy

This tool modifies mount server settings within a Veeam backup infrastructure. While reversible, mount servers are critical components that control how backups are accessed and recovered, so misconfiguration could impact backup availability and recovery operations (high severity).

From the tool's definition The tool is named 'UpdateMountServer' and described as 'Update a mount server configuration.' 'Update' indicates modification of an existing configuration, which is reversible (not deletion) and does not involve financial transactions or arbitrary code…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

UpdateMountServer Rate-limited

UpdateMountServer stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "UpdateMountServer": {
      "limits": [
        {
          "counter": "updatemountserver_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Veeam VBR v13 MCP Server, so you can run agents against it safely.

FAQ

Questions about UpdateMountServer

What does the UpdateMountServer tool do? +

Update a mount server configuration. It is categorised as a Write tool in the Veeam VBR v13 MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on UpdateMountServer? +

Register the Veeam VBR v13 MCP Server MCP server in PolicyLayer and add a rule for UpdateMountServer: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Veeam VBR v13 MCP Server. Nothing to install.

What risk level is UpdateMountServer? +

UpdateMountServer is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit UpdateMountServer? +

Yes. Add a rate_limit block to the UpdateMountServer rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block UpdateMountServer completely? +

Set action: deny in the PolicyLayer policy for UpdateMountServer. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides UpdateMountServer? +

UpdateMountServer is provided by the Veeam VBR v13 MCP Server MCP server (kid-boy/veeam-mcp-13). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.