CVE-2025-51986 Details
Description
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.
A denial-of-service vulnerability has been identified in SILA Embedded Solutions freemodbus version 2018-09-12. The issue arises in the demo/LINUXTCP implementation, where attackers can cause the server to enter an infinite loop by sending a packet with a crafted length value. This vulnerability affects the LINUXTCP server component on Ubuntu 20.04.6 LTS.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Aug 14, 2025CISA-ADP
Assessed Aug 14, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gist.github.com/jyjsunny/a9743a718ed3081b034c11201803f6b4 | [email protected] | ExploitTechnical Description |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-835 | Loop with Unreachable Exit Condition ('Infinite Loop') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| SILA Embedded Solutions freemodbus | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Aug 14, 2025 | CVE Modified | CISA-ADP |
| Aug 14, 2025 | New CVE Received | [email protected] |
Volerion