PT-2025-40999 · Openplc · Openplc

A Member · Published 2025-10-07 · Updated 2025-10-07 · CVE-2025-53476

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions OpenPLC version v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58

Description A denial of service issue exists in the ModbusTCP server functionality. An attacker can open a series of TCP connections to exhaust the server and prevent it from processing further Modbus requests.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-775

Related Identifiers

CVE-2025-53476

Affected Products

Openplc

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2025-53476 · Security Note
• https://twitter.com/CVEnew/status/1975565857532027038 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1975619216154784109 · Twitter Post
• https://talosintelligence.com/vulnerability_reports/TALOS-2025-2223 · Note
• https://t.me/CVEtracker/34320 · Telegram Post