{"id":"CVE-2020-15782","published":"2021-05-28T16:10:10Z","modified":"2026-06-02T18:50:38Z","title":"A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open…","vendor":"Siemens","product":"SIMATIC Drive Controller family","tier":"core","eol":null,"affectedVersions":[{"vendor":"Siemens","product":"SIMATIC Drive Controller family","versions":["All versions < V2.9.2"]},{"vendor":"Siemens","product":"SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants)","versions":["All versions"]},{"vendor":"Siemens","product":"SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)","versions":["All versions < V21.9"]},{"vendor":"Siemens","product":"SIMATIC S7-1200 CPU family (incl. SIPLUS variants)","versions":["All versions < V4.5.0"]},{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)","versions":["All versions < V2.9.2"]},{"vendor":"Siemens","product":"SIMATIC S7-1500 Software Controller","versions":["All versions < V21.9"]},{"vendor":"Siemens","product":"SIMATIC S7-PLCSIM Advanced","versions":["All versions < V4.0"]},{"vendor":"Siemens","product":"SINAMICS PERFECT HARMONY GH180 Drives","versions":["Drives manufactured before 2021-08-13"]},{"vendor":"Siemens","product":"SINUMERIK MC","versions":["All versions < V6.15"]},{"vendor":"Siemens","product":"SINUMERIK ONE","versions":["All versions < V6.15"]}],"description":{"text":"A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.5.0), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.9.2), SIMATIC S7-1500 Software Controller (All versions < V21.9), SIMATIC S7-PLCSIM Advanced (All versions < V4.0), SINAMICS PERFECT HARMONY GH180 Drives (Drives manufactured before 2021-08-13), SINUMERIK MC (All versions < V6.15), SINUMERIK ONE (All versions < V6.15). Affected devices are vulnerable to a memory protection bypass through a specific operation. A remote unauthenticated attacker with network access to port 102/tcp could potentially write arbitrary data and code to protected memory areas or read sensitive data to launch further attacks.","provenance":"source","from":"CVE.org"},"summary":{"text":"A memory protection bypass in Siemens SIMATIC Drive Controller family, SIMATIC ET 200SP Open Controller, SIMATIC S7-1200 and S7-1500 CPU families, S7-1500 Software Controller, S7-PLCSIM Advanced, SINAMICS PERFECT HARMONY GH180 Drives, and SINUMERIK MC and ONE, stemming from improper restriction of operations within the bounds of a memory buffer. A remote attacker with network access to port 102/tcp, requiring no authentication or user interaction, could write arbitrary data and code to protected memory areas or read sensitive data.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:15:35Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"CISA ADP Vulnrichment"},"epss":{"score":0.05184,"percentile":0.92461,"date":"2026-10-31","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":null,"cwes":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-434534.pdf","tags":["x_refsource_MISC"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-434536.pdf","tags":["x_refsource_MISC"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-434535.pdf","tags":["x_refsource_MISC"]}],"techniques":[],"reports":[{"id":"SRC-06a2fa5397da4000010a","title":"ICS/OT CYBERSECURITY","publisher":"hub.dragos.com","url":"https://hub.dragos.com/hubfs/333%20Year%20in%20Review/2021/2021%20ICS%20OT%20Cybersecurity%20Year%20In%20Review%20-%20Dragos%202021.pdf?hsLang=en","date":null,"mentions":[{"quote":"In 2021, Siemens disclosed a vulnerability in its PLC, CVE-2020-15782,15 which can","start":101710,"end":101792}]}],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2020-7765","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-7765","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2021-05-28","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2020-15782","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":29.2,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":18.49,"detail":"percentile 0.9246"},{"name":"Named in threat reports","points":3.87,"detail":"1 report"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}