{"id":"CVE-2025-53476","title":"A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC _v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58","summary":"A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC _v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Mo…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-775"],"published":"2025-10-07","updated":"2026-10-08","sourceUpdated":"2026-10-08T22:10:00.563","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-53476","references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2025-2223","label":"talos-cna@cisco.com"},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2223","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00465,"epssPercentile":0.38232,"ingestedAt":"2026-10-08T22:11:53.793Z","slug":"CVE-2025-53476","body":"## Overview\n\nA denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC _v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Modbus requests. An attacker can open a series of TCP connections to trigger this vulnerability.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}