CriticalCISAOct 22, 2026

Siemens SENTRON 3NA COM Fuse

View CSAF Summary SENTRON 3NA COM Fuse contains a Denial-of-Service vulnerability. Improper handling of a network management message could allow an attacker to trigger a denial-of-service (DoS) condition. Successful exploitation may require the affected network to be re-established to restore normal operation. The following versions of Siemens SENTRON 3NA COM Fuse are affected: SENTRON 3NA COM Fuse vers:intdot/<5.2 (CVE-2024-7322) CVSS Vendor Equipment v3 5.8 Siemens SENTRON 3NA COM Fuse 1 Vulnerability Improper Verification of Source of a Communication Channel Background Critical Infrastructure Sectors: Critical Manufacturing, Transportation Systems, Energy, Healthcare and Public Health,

Why it matters

The weakness can enable direct compromise with limited attacker prerequisites, making internet-facing assets the first place to look.

What defenders should do

Identify affected versions, prioritize internet-facing systems, and apply the vendor remediation.

Verify at the source

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