CVE•Published 2025-12-10•Modified 2026-10-14•1 article on news•4 live references•NVD data
CVE-2025-34394Barracuda · Rmm
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
52
Exploit Prediction Scoring System · top 48% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2025-12-10
Modified 2026-10-14
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2025-34394Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Barracuda Rmm"All exposed Barracuda Rmm instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Rmm"HTTP body or banner mentions "Rmm" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2025-34394Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2025-34394Censys host search filtered to this CVE id.
grep.app
CVE-2025-34394Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2025-34394GitHub code search for direct mentions.
Google dork
"CVE-2025-34394" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.