{"id":"CVE-2020-12497","aliases":["EUVD-2020-4799","GHSA-729h-mx93-mqwv"],"status":"published","title":"Phoenix Contact Automation Worx \u003c= 1.87: stack-based overflow","description":"PLCopen XML file parsing in Phoenix Contact PC Worx and PC Worx Express version 1.87 and earlier can lead to a stack-based overflow. Manipulated PC Worx projects could lead to a remote code execution due to insufficient input data validation.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.14668,"percentile":0.96706,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2020-07-01T15:52:35Z","modified":"2026-06-17T02:51:54Z","products":[{"vendor":"phoenix contact","product":"automation worx"},{"vendor":"phoenix contact","product":"automation worx express"},{"vendor":"phoenixcontact","product":"pc_worx"},{"vendor":"phoenixcontact","product":"pc_worx_express"}],"references":[{"url":"https://cert.vde.com/de-de/advisories/vde-2020-023","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-20-825/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-398/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-12497"},{"url":"https://github.com/advisories/GHSA-729h-mx93-mqwv"}],"sources":{"cve":[{"id":"CVE-2020-12497","title":"Phoenix Contact Automation Worx \u003c= 1.87: stack-based overflow","description":"PLCopen XML file parsing in Phoenix Contact PC Worx and PC Worx Express version 1.87 and earlier can lead to a stack-based overflow. Manipulated PC Worx projects could lead to a remote code execution due to insufficient input data validation.","status":"published","published":"2020-07-01T15:52:35Z","modified":"2024-08-04T11:56:52.059Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:35:52.925152Z"}],"euvd":[{"id":"EUVD-2020-4799","description":"PLCopen XML file parsing in Phoenix Contact PC Worx and PC Worx Express version 1.87 and earlier can lead to a stack-based overflow. Manipulated PC Worx projects could lead to a remote code execution due to insufficient input data validation.","status":"published","published":"2020-07-01T15:52:35Z","modified":"2024-08-04T11:56:52Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:07:39.896975Z"}],"ghsa":[{"id":"GHSA-729h-mx93-mqwv","title":"PLCopen XML file parsing in Phoenix Contact PC Worx and PC Worx Express version 1.87 and earlier...","description":"PLCopen XML file parsing in Phoenix Contact PC Worx and PC Worx Express version 1.87 and earlier can lead to a stack-based overflow. Manipulated PC Worx projects could lead to a remote code execution due to insufficient input data validation.","status":"published","published":"2022-05-24T17:22:10Z","modified":"2023-01-28T03:30:30Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:43:22.817498Z"}],"nvd":[{"id":"CVE-2020-12497","description":"PLCopen XML file parsing in Phoenix Contact PC Worx and PC Worx Express version 1.87 and earlier can lead to a stack-based overflow. Manipulated PC Worx projects could lead to a remote code execution due to insufficient input data validation.","status":"published","published":"2020-07-01T16:15:12.853Z","modified":"2026-06-17T02:51:54.683Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:06:08.145904Z"}]}}