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CVE-2025-34394: barracuda networks rmm Deserialization of Untrusted Data

CVSS: 10.0v4.0CriticalAnalyzed
Published 10-12-2025Last modified 14-05-2026
Open JSON

Vulnerability summary

CVE-2025-34394 is a critical (CVSS 10.0) Deserialization of Untrusted Data vulnerability in barracuda networks rmm. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 52.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
10.0/10
010
Critical · v4.0 (CVE.org)
EPSS score
0.71%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 10-12-2025
    PublishedVulnerability first disclosed.
  2. 14-05-2026
    Last modifiedVulnerability information updated.

Description

Barracuda Service Center, as implemented in the RMM solution, in versions prior to 2025.1.1, exposes a .NET Remoting service that is insufficiently protected against deserialization of arbitrary types. This can lead to remote code execution.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.71%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

0.00 pp

From 0.71% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.71%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Barracuda1 product
Barracuda networks1 product
  • rmm≥ 2025.1, < 2025.1.1

2 vendors · 2 products

References

3 links