{"id":"CVE-2023-32735","aliases":["EUVD-2023-36960","GHSA-27hg-xg89-rq4f"],"status":"published","title":"A vulnerability has been identified in SIMATIC STEP 7 Safety V16 (All versions \u003c V16 Update 7),...","description":"A vulnerability has been identified in SIMATIC STEP 7 Safety V16 (All versions \u003c V16 Update 7), SIMATIC STEP 7 Safety V17 (All versions \u003c V17 Update 7), SIMATIC STEP 7 Safety V18 (All versions \u003c V18 Update 2), SIMATIC STEP 7 V16 (All versions \u003c V16 Update 7), SIMATIC STEP 7 V17 (All versions \u003c V17 Update 7), SIMATIC STEP 7 V18 (All versions \u003c V18 Update 2), SIMATIC WinCC Unified V16 (All versions \u003c V16 Update 7), SIMATIC WinCC Unified V17 (All versions \u003c V17 Update 7), SIMATIC WinCC Unified V18 (All versions \u003c V18 Update 2), SIMATIC WinCC V16 (All versions \u003c V16.7), SIMATIC WinCC V17 (All versions \u003c V17.7), SIMATIC WinCC V18 (All versions \u003c V18 Update 2), SIMOCODE ES V16 (All versions \u003c V16 Update 7), SIMOCODE ES V17 (All versions \u003c V17 Update 7), SIMOCODE ES V18 (All versions \u003c V18 Update 2), SIMOTION SCOUT TIA V5.4 SP1 (All versions), SIMOTION SCOUT TIA V5.4 SP3 (All versions), SIMOTION SCOUT TIA V5.5 SP1 (All versions), SINAMICS Startdrive V16 (All versions), SINAMICS Startdrive V17 (All versions), SINAMICS Startdrive V18 (All versions), SIRIUS Safety ES V17 (All versions \u003c V17 Update 7), SIRIUS Safety ES V18 (All versions \u003c V18 Update 2), SIRIUS Soft Starter ES V17 (All versions \u003c V17 Update 7), SIRIUS Soft Starter ES V18 (All versions \u003c V18 Update 2), Soft Starter ES V16 (All versions \u003c V16 Update 7), TIA Portal Cloud V3.0 (All versions \u003c V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing hardware configuration profiles. This could allow an attacker to cause a type confusion and execute arbitrary code within the affected application.\r\n\r\nThis is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300.","severity":{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00213,"percentile":0.11636,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2024-07-09T12:04:26Z","modified":"2026-06-17T05:59:28Z","products":[{"vendor":"siemens","product":"simatic step 7 safety v16"},{"vendor":"siemens","product":"simatic step 7 safety v17"},{"vendor":"siemens","product":"simatic step 7 safety v18"},{"vendor":"siemens","product":"simatic step 7 v16"},{"vendor":"siemens","product":"simatic step 7 v17"},{"vendor":"siemens","product":"simatic step 7 v18"},{"vendor":"siemens","product":"simatic wincc unified v16"},{"vendor":"siemens","product":"simatic wincc unified v17"},{"vendor":"siemens","product":"simatic wincc unified v18"},{"vendor":"siemens","product":"simatic wincc v16"},{"vendor":"siemens","product":"simatic wincc v17"},{"vendor":"siemens","product":"simatic wincc v18"},{"vendor":"siemens","product":"simatic_step_7"},{"vendor":"siemens","product":"simatic_step_7_safety"},{"vendor":"siemens","product":"simatic_wincc"},{"vendor":"siemens","product":"simatic_wincc_unified"},{"vendor":"siemens","product":"simocode es v16"},{"vendor":"siemens","product":"simocode es v17"},{"vendor":"siemens","product":"simocode es v18"},{"vendor":"siemens","product":"simocode_es"},{"vendor":"siemens","product":"simotion scout tia v5.4 sp1"},{"vendor":"siemens","product":"simotion scout tia v5.4 sp3"},{"vendor":"siemens","product":"simotion scout tia v5.5 sp1"},{"vendor":"siemens","product":"simotion_scout_tia"},{"vendor":"siemens","product":"sinamics startdrive v16"},{"vendor":"siemens","product":"sinamics startdrive v17"},{"vendor":"siemens","product":"sinamics startdrive v18"},{"vendor":"siemens","product":"sinamics_startdrive"},{"vendor":"siemens","product":"sirius safety es v17"},{"vendor":"siemens","product":"sirius safety es v18"},{"vendor":"siemens","product":"sirius soft starter es v17"},{"vendor":"siemens","product":"sirius soft starter es v18"},{"vendor":"siemens","product":"sirius_safety_es"},{"vendor":"siemens","product":"sirius_soft_starter_es"},{"vendor":"siemens","product":"soft starter es v16"},{"vendor":"siemens","product":"soft_starter_es"},{"vendor":"siemens","product":"tia portal cloud v3.0"},{"vendor":"siemens","product":"tia_portal_cloud_v3.0"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-779936.html","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-32735"},{"url":"https://github.com/advisories/GHSA-27hg-xg89-rq4f"}],"sources":{"cve":[{"id":"CVE-2023-32735","description":"A vulnerability has been identified in SIMATIC STEP 7 Safety V16 (All versions \u003c V16 Update 7), SIMATIC STEP 7 Safety V17 (All versions \u003c V17 Update 7), SIMATIC STEP 7 Safety V18 (All versions \u003c V18 Update 2), SIMATIC STEP 7 V16 (All versions \u003c V16 Update 7), SIMATIC STEP 7 V17 (All versions \u003c V17 Update 7), SIMATIC STEP 7 V18 (All versions \u003c V18 Update 2), SIMATIC WinCC Unified V16 (All versions \u003c V16 Update 7), SIMATIC WinCC Unified V17 (All versions \u003c V17 Update 7), SIMATIC WinCC Unified V18 (All versions \u003c V18 Update 2), SIMATIC WinCC V16 (All versions \u003c V16.7), SIMATIC WinCC V17 (All versions \u003c V17.7), SIMATIC WinCC V18 (All versions \u003c V18 Update 2), SIMOCODE ES V16 (All versions \u003c V16 Update 7), SIMOCODE ES V17 (All versions \u003c V17 Update 7), SIMOCODE ES V18 (All versions \u003c V18 Update 2), SIMOTION SCOUT TIA V5.4 SP1 (All versions), SIMOTION SCOUT TIA V5.4 SP3 (All versions), SIMOTION SCOUT TIA V5.5 SP1 (All versions), SINAMICS Startdrive V16 (All versions), SINAMICS Startdrive V17 (All versions), SINAMICS Startdrive V18 (All versions), SIRIUS Safety ES V17 (All versions \u003c V17 Update 7), SIRIUS Safety ES V18 (All versions \u003c V18 Update 2), SIRIUS Soft Starter ES V17 (All versions \u003c V17 Update 7), SIRIUS Soft Starter ES V18 (All versions \u003c V18 Update 2), Soft Starter ES V16 (All versions \u003c V16 Update 7), TIA Portal Cloud V3.0 (All versions \u003c V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing hardware configuration profiles. This could allow an attacker to cause a type confusion and execute arbitrary code within the affected application.\r\n\r\nThis is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300.","status":"published","published":"2024-07-09T12:04:26.871Z","modified":"2025-08-27T20:32:53.425Z","cvss":[{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:35:29.381004Z"}],"euvd":[{"id":"EUVD-2023-36960","description":"A vulnerability has been identified in SIMATIC STEP 7 Safety V16 (All versions \u003c V16 Update 7), SIMATIC STEP 7 Safety V17 (All versions \u003c V17 Update 7), SIMATIC STEP 7 Safety V18 (All versions \u003c V18 Update 2), SIMATIC STEP 7 V16 (All versions \u003c V16 Update 7), SIMATIC STEP 7 V17 (All versions \u003c V17 Update 7), SIMATIC STEP 7 V18 (All versions \u003c V18 Update 2), SIMATIC WinCC Unified V16 (All versions \u003c V16 Update 7), SIMATIC WinCC Unified V17 (All versions \u003c V17 Update 7), SIMATIC WinCC Unified V18 (All versions \u003c V18 Update 2), SIMATIC WinCC V16 (All versions \u003c V16.7), SIMATIC WinCC V17 (All versions \u003c V17.7), SIMATIC WinCC V18 (All versions \u003c V18 Update 2), SIMOCODE ES V16 (All versions \u003c V16 Update 7), SIMOCODE ES V17 (All versions \u003c V17 Update 7), SIMOCODE ES V18 (All versions \u003c V18 Update 2), SIMOTION SCOUT TIA V5.4 SP1 (All versions), SIMOTION SCOUT TIA V5.4 SP3 (All versions), SIMOTION SCOUT TIA V5.5 SP1 (All versions), SINAMICS Startdrive V16 (All versions), SINAMICS Startdrive V17 (All versions), SINAMICS Startdrive V18 (All versions), SIRIUS Safety ES V17 (All versions \u003c V17 Update 7), SIRIUS Safety ES V18 (All versions \u003c V18 Update 2), SIRIUS Soft Starter ES V17 (All versions \u003c V17 Update 7), SIRIUS Soft Starter ES V18 (All versions \u003c V18 Update 2), Soft Starter ES V16 (All versions \u003c V16 Update 7), TIA Portal Cloud V3.0 (All versions \u003c V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing hardware configuration profiles. This could allow an attacker to cause a type confusion and execute arbitrary code within the affected application.\r\n\r\nThis is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300.","status":"published","published":"2024-07-09T12:04:26Z","modified":"2025-08-27T20:32:53Z","cvss":[{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T20:31:51.141859Z"}],"ghsa":[{"id":"GHSA-27hg-xg89-rq4f","title":"A vulnerability has been identified in SIMATIC STEP 7 Safety V16 (All versions \u003c V16 Update 7),...","description":"A vulnerability has been identified in SIMATIC STEP 7 Safety V16 (All versions \u003c V16 Update 7), SIMATIC STEP 7 Safety V17 (All versions \u003c V17 Update 7), SIMATIC STEP 7 Safety V18 (All versions \u003c V18 Update 2), SIMATIC STEP 7 V16 (All versions \u003c V16 Update 7), SIMATIC STEP 7 V17 (All versions \u003c V17 Update 7), SIMATIC STEP 7 V18 (All versions \u003c V18 Update 2), SIMATIC WinCC Unified V16 (All versions \u003c V16 Update 7), SIMATIC WinCC Unified V17 (All versions \u003c V17 Update 7), SIMATIC WinCC Unified V18 (All versions \u003c V18 Update 2), SIMATIC WinCC V16 (All versions \u003c V16.7), SIMATIC WinCC V17 (All versions \u003c V17.7), SIMATIC WinCC V18 (All versions \u003c V18 Update 2), SIMOCODE ES V16 (All versions \u003c V16 Update 7), SIMOCODE ES V17 (All versions \u003c V17 Update 7), SIMOCODE ES V18 (All versions \u003c V18 Update 2), SIMOTION SCOUT TIA V5.4 SP1 (All versions), SIMOTION SCOUT TIA V5.4 SP3 (All versions), SIMOTION SCOUT TIA V5.5 SP1 (All versions), SINAMICS Startdrive V16 (All versions), SINAMICS Startdrive V17 (All versions), SINAMICS Startdrive V18 (All versions), SIRIUS Safety ES V17 (All versions \u003c V17 Update 7), SIRIUS Safety ES V18 (All versions \u003c V18 Update 2), SIRIUS Soft Starter ES V17 (All versions \u003c V17 Update 7), SIRIUS Soft Starter ES V18 (All versions \u003c V18 Update 2), Soft Starter ES V16 (All versions \u003c V16 Update 7), TIA Portal Cloud V3.0 (All versions \u003c V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing hardware configuration profiles. This could allow an attacker to cause a type confusion and execute arbitrary code within the affected application.\n\nThis is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300.","status":"published","published":"2024-07-09T12:30:57Z","modified":"2024-08-08T05:06:19Z","cvss":[{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:57:54.028208Z"}],"nvd":[{"id":"CVE-2023-32735","description":"A vulnerability has been identified in SIMATIC STEP 7 Safety V16 (All versions \u003c V16 Update 7), SIMATIC STEP 7 Safety V17 (All versions \u003c V17 Update 7), SIMATIC STEP 7 Safety V18 (All versions \u003c V18 Update 2), SIMATIC STEP 7 V16 (All versions \u003c V16 Update 7), SIMATIC STEP 7 V17 (All versions \u003c V17 Update 7), SIMATIC STEP 7 V18 (All versions \u003c V18 Update 2), SIMATIC WinCC Unified V16 (All versions \u003c V16 Update 7), SIMATIC WinCC Unified V17 (All versions \u003c V17 Update 7), SIMATIC WinCC Unified V18 (All versions \u003c V18 Update 2), SIMATIC WinCC V16 (All versions \u003c V16.7), SIMATIC WinCC V17 (All versions \u003c V17.7), SIMATIC WinCC V18 (All versions \u003c V18 Update 2), SIMOCODE ES V16 (All versions \u003c V16 Update 7), SIMOCODE ES V17 (All versions \u003c V17 Update 7), SIMOCODE ES V18 (All versions \u003c V18 Update 2), SIMOTION SCOUT TIA V5.4 SP1 (All versions), SIMOTION SCOUT TIA V5.4 SP3 (All versions), SIMOTION SCOUT TIA V5.5 SP1 (All versions), SINAMICS Startdrive V16 (All versions), SINAMICS Startdrive V17 (All versions), SINAMICS Startdrive V18 (All versions), SIRIUS Safety ES V17 (All versions \u003c V17 Update 7), SIRIUS Safety ES V18 (All versions \u003c V18 Update 2), SIRIUS Soft Starter ES V17 (All versions \u003c V17 Update 7), SIRIUS Soft Starter ES V18 (All versions \u003c V18 Update 2), Soft Starter ES V16 (All versions \u003c V16 Update 7), TIA Portal Cloud V3.0 (All versions \u003c V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing hardware configuration profiles. This could allow an attacker to cause a type confusion and execute arbitrary code within the affected application.\r\n\r\nThis is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300.","status":"published","published":"2024-07-09T12:15:09.347Z","modified":"2026-06-17T05:59:28.717Z","cvss":[{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:09:17.205287Z"}]}}