CVE-2026-35227

HIGH EPSS 27.0%

Published May 12, 20261mo ago · Modified Jun 17, 20261w ago

8.2 CVSS 4.0

High

Published May 12, 2026 1mo ago

Last Modified Jun 17, 2026 1w ago

Description

An unauthenticated remote attacker may exhaust all available TCP connections in the CODESYS Modbus TCP Server stack if a race condition in connection handling is successfully exploited, preventing legitimate clients from establishing new connections.

CVSS Details

Base Score

8.2

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

27.0% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-772

References 1

certvde.com https://certvde.com/de/advisories/VDE-2026-042

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.