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CVE-2025-51986
Good to know:

Date: August 13, 2025
An issue was discovered in the demo/LINUXTCP implementation of cwalter-at freemodbus v.2018-09-12 allowing attackers to reach an infinite loop via a crafted length value for a packet.
Severity Score
Severity Score
Weakness Type (CWE)
Loop with Unreachable Exit Condition ('Infinite Loop')
CWE-835Top Fix

Upgrade Version
Upgrade to version https://github.com/cwalter-at/freemodbus.git - null
CVSS v3.1
Base Score: |
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Attack Vector (AV): | NETWORK |
Attack Complexity (AC): | LOW |
Privileges Required (PR): | NONE |
User Interaction (UI): | NONE |
Scope (S): | UNCHANGED |
Confidentiality (C): | NONE |
Integrity (I): | NONE |
Availability (A): | HIGH |