{"id":"CVE-2025-53476","state":"PUBLISHED","title":"A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC _v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connec","description":"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 Modbus requests. An attacker can open a series of TCP connections to trigger this vulnerability.","publishedAt":"2025-10-07T13:49:56.656Z","updatedAt":"2025-11-03T17:44:59.045Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","source":"talos"},"assigner":"talos","products":["OpenPLC OpenPLC_v3"],"affected":[{"vendor":"OpenPLC","product":"OpenPLC_v3","versions":[{"version":"a931181e8b81e36fadf7b74d5cba99b73c3f6d58","status":"affected"}]}],"references":["https://talosintelligence.com/vulnerability_reports/TALOS-2025-2223","https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2223"],"weaknesses":["CWE-775"],"ingestedAt":"2026-10-29T20:09:31.862Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/53xxx/CVE-2025-53476.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-53476","state":"PUBLISHED","datePublished":"2025-10-07T13:49:56.656Z","dateUpdated":"2025-11-03T17:44:59.045Z","assignerShortName":"talos","assignerOrgId":"b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b","dateReserved":"2025-07-11T21:16:14.229Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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 Modbus requests. An attacker can open a series of TCP connections to trigger this vulnerability."}],"affected":[{"vendor":"OpenPLC","product":"OpenPLC_v3","versions":[{"version":"a931181e8b81e36fadf7b74d5cba99b73c3f6d58","status":"affected"}]}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2025-2223","name":"https://talosintelligence.com/vulnerability_reports/TALOS-2025-2223"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-775","lang":"en","description":"CWE-775: Missing Release of File Descriptor or Handle after Effective Lifetime","type":"CWE"}]}],"providerMetadata":{"shortName":"talos","orgId":"b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b","dateUpdated":"2025-10-07T13:49:56.656Z"},"credits":[{"lang":"en","value":"Discovered by a member of Cisco Talos."}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-10-07T14:33:42.008541Z","id":"CVE-2025-53476","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-07T15:28:56.205Z"}},{"title":"CVE Program Container","references":[{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2223"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T17:44:59.045Z"}}]}}}