CVE-2025-34395
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedBarracuda Service Center, as implemented in the RMM solution, in versions prior to 2025.1.1, exposes a .NET Remoting service in which an unauthenticated attacker can invoke a method vulnerable to path traversal to read arbitrary files. This vulnerability can be escalated to remote code execution by retrieving the .NET machine keys.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceBarracuda RMM Service Center versions prior to 2025.1.1 expose an unauthenticated .NET Remoting service containing a path traversal vulnerability that allows reading arbitrary files. The vulnerability can be chained with machine key retrieval to achieve remote code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 2025.1.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm Barracuda RMM Service Center installationLocate the Barracuda RMM Service Center installation directory or check for the service in the Windows Services list (service name typically contains 'Barracuda' and 'RMM' or 'ServiceCenter')Affected if Barracuda RMM Service Center is found on the system
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Identify installed versionCheck the version of the Barracuda RMM Service Center installation - typically found in the application executable, installer files, or Windows registry under the Barracuda RMM product keysAffected if The version is lower than 2025.1.1 (for example, 2024.x, 2025.0.x, or any version prior to 2025.1.1)
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Verify .NET Remoting service exposureCheck if the .NET Remoting service (typically listening on a TCP port) is exposed by the Barracuda RMM Service Center - this may be configurable in the product settings or visible in network listener configurationsAffected if The .NET Remoting service is enabled and bound to a network interface accessible to attackers
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Assess unauthenticated accessConfirm whether the .NET Remoting endpoint accepts connections without requiring authentication - this is the default vulnerable configuration according to the CVE descriptionAffected if The .NET Remoting endpoint allows unauthenticated access from the network
The environment is affected if Barracuda RMM Service Center is installed with a version prior to 2025.1.1 and the unauthenticated .NET Remoting service is exposed on the network.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped2025.1.1
Upgrade Barracuda RMM Service Center to version 2025.1.1 or later to remediate this vulnerability.
2025.1.1
- Obtain the Barracuda RMM version 2025.1.1 or later from the official Barracuda download portal at download.mw-rmm.barracudamsp.com or through your Barracuda support account
- Review the Barracuda RMM upgrade documentation and release notes for version 2025.1.1
- Ensure you have a complete backup of your current RMM configuration and data
- Schedule an appropriate maintenance window for the upgrade
- Perform the upgrade following Barracuda's documented upgrade procedure
- Verify the upgrade was successful by confirming the RMM version displays 2025.1.1 or later
- Test that the Barracuda Service Center functionality is operating normally
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,328.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-34395 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-34395 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data