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Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34595"},{"url":"https://github.com/advisories/GHSA-r36w-qc6c-g892"}],"sources":{"cve":[{"id":"CVE-2021-34595","title":"CODESYS V2 runtime: out-of-bounds read or write access may result in denial-of-service","description":"A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite.","status":"published","published":"2021-10-26T09:55:52.868Z","modified":"2024-09-17T03:42:53.986Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-823"],"updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2021-21245","description":"A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite.","status":"published","published":"2021-10-26T09:55:52Z","modified":"2024-09-17T03:42:53Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:28:29.460274Z"}],"ghsa":[{"id":"GHSA-r36w-qc6c-g892","title":"A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS...","description":"A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite.","status":"published","published":"2022-05-24T19:18:51Z","modified":"2023-01-29T05:02:38Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","level":"high"}],"cwes":["CWE-119","CWE-823"],"updated_at":"2026-11-02T14:45:08.066233Z"}],"nvd":[{"id":"CVE-2021-34595","description":"A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory 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