How severe is CVE-2025-34392?

CVE-2025-34392 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-34392 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-34392?

CVE-2025-34392 affects Barracuda Rmm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-34392?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-34392 have an EU (EUVD) identifier?

Yes. CVE-2025-34392 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202447.

When was CVE-2025-34392 published?

CVE-2025-34392 was published on 2025-12-10 and last updated on 2026-06-17.

CVE-2025-34392

CVE-2025-34392 is a critical-severity vulnerability in Barracuda Rmm with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 22% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-36.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 10.0
EPSS exploit prediction: 22% (97th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-202447
Weakness: CWE-36
Affected product: Barracuda Rmm
Published: 2025-12-10
Last modified: 2026-06-17

Description

Barracuda Service Center, as implemented in the RMM solution, in versions prior to 2025.1.1, does not verify the URL defined in an attacker-controlled WSDL that is later loaded by the application. This can lead to arbitrary file write and remote code execution via webshell upload.

Frequently asked questions

What is CVE-2025-34392?: Barracuda Service Center, as implemented in the RMM solution, in versions prior to 2025.1.1, does not verify the URL defined in an attacker-controlled WSDL that is later loaded by the application. This can lead to arbitrary file write and remote code execution via webshell upload.
How severe is CVE-2025-34392?: CVE-2025-34392 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-34392 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-34392?: CVE-2025-34392 affects Barracuda Rmm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-34392?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-34392 have an EU (EUVD) identifier?: Yes. CVE-2025-34392 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202447.
When was CVE-2025-34392 published?: CVE-2025-34392 was published on 2025-12-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:barracuda:rmm:*:*:*:*:*:*:*:*

More vulnerabilities in Barracuda Rmm

CVE-2025-34394 — Critical (CVSS 9.8): Barracuda Service Center, as implemented in the RMM solution, in versions prior to 2025.1.1, exposes a .NET Remoting…
CVE-2025-34393 — Critical (CVSS 9.8): Barracuda Service Center, as implemented in the RMM solution, in versions prior to 2025.1.1, does not correctly verify…
CVE-2025-34395 — High (CVSS 7.5): Barracuda Service Center, as implemented in the RMM solution, in versions prior to 2025.1.1, exposes a .NET Remoting…

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