CVE-2025-34392Public exploitNetwork attack vector

Unauthenticated RCE via WSDL-controlled file write

Published Dec 10, 2025 · Updated Dec 10, 2025

Absolute path traversal in Barracuda RMM before 2025.1.1 allows remote attackers to execute code through a malicious WSDL. The unauthenticated InvokeRemoteMethod SOAP method imports an attacker-hosted WSDL, and the generated proxy accepts a file URL as its service address and writes the SOAP body to that path. Network access to a self-hosted Service Center is sufficient to place an ASPX webshell under SCMessaging and run commands as the web application.

CVSS severity10.0
Critical
EPSS probability24.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Absolute path traversal in Barracuda RMM before 2025.1.1 allows remote attackers to execute code through a malicious WSDL. The unauthenticated InvokeRemoteMethod SOAP method imports an attacker-hosted WSDL, and the generated proxy accepts a file URL as its service address and writes the SOAP body to that path. Network access to a self-hosted Service Center is sufficient to place an ASPX webshell under SCMessaging and run commands as the web application.

The record

CVE
CVE-2025-34392
Published
Dec 10, 2025
Updated
Dec 10, 2025
Vendor
Barracuda Networks
Product
Barracuda RMM
Classifications
CWE-36, T1505.003, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2025.1 <2025.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Barracuda Networks · Barracuda RMMversion=2025.1 <2025.1.1

Published CVSS scores

10.0VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-36Absolute Path Traversal
T1505.003Web Shell
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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