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CVE-2025-34393

Barracuda Rmm remote code execution

9.8 CRITICALEPSS 0.71%
  1. Published10 Dec 2025

Description

Barracuda Service Center, as implemented in the RMM solution, in versions prior to 2025.1.1, does not correctly verify the name of an attacker-controlled WSDL service, leading to insecure reflection. This can result in remote code execution through either invocation of arbitrary methods or deserialization of untrusted types.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Barracuda Rmm< 2025.1.1

Remediation

Fixed in
Barracuda Rmm≥ 2025.1.1

References

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Frequently asked

Is CVE-2025-34393 being actively exploited?

CVE-2025-34393 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.71%.

How severe is CVE-2025-34393?

CVE-2025-34393 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.71% probability of exploitation.

Which products are affected by CVE-2025-34393?

Affected products include Barracuda Rmm.

How do I fix CVE-2025-34393?

Upgrade affected software to a fixed version, for example Barracuda Rmm 2025.1.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.