{"cve":"CVE-2020-25242","nvd":{"published":"2021-05-12T14:15:10.657","modified":"2026-06-17T03:06:38.873","status":"Modified","description":"A vulnerability has been identified in SIMATIC NET CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC NET CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC NET CP 343-1 Standard (incl. SIPLUS variants) (All versions). Specially crafted packets sent to TCP port 102 could cause a Denial-of-Service condition on the affected devices. A cold restart might be necessary in order to recover.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400"],"references":["https://cert-portal.siemens.com/productcert/pdf/ssa-676775.pdf","https://cert-portal.siemens.com/productcert/pdf/ssa-676775.pdf","https://cert-portal.siemens.com/productcert/pdf/ssa-676775.pdf","https://cert-portal.siemens.com/productcert/pdf/ssa-676775.pdf","https://us-cert.cisa.gov/ics/advisories/icsa-21-131-07"],"products":["siemens:simatic_net_cp_343-1_advanced_firmware","siemens:simatic_net_cp_343-1_lean_firmware","siemens:simatic_net_cp_343-1_standard_firmware"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2020-25242","score":0.01269,"percentile":0.69802,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}