{"id":"CVE-2021-43390","aliases":["EUVD-2021-30325","GHSA-6c82-vjcw-p9xg"],"status":"published","title":"An Out-of-Bounds Write vulnerability exists when reading a DGN file using Open Design Alliance...","description":"An Out-of-Bounds Write vulnerability exists when reading a DGN file using Open Design Alliance Drawings SDK before 2022.11. The specific issue exists within the parsing of DGN files. Crafted data in a DGN file and lack of proper validation of input data can trigger a write operation past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.","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":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01695,"percentile":0.77282,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-11-14T20:56:44Z","modified":"2026-06-17T04:10:53Z","products":[{"vendor":"opendesign","product":"drawings_software_development_kit"}],"references":[{"url":"https://www.opendesign.com/security-advisories","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1348/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1347/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1362/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43390"},{"url":"https://github.com/advisories/GHSA-6c82-vjcw-p9xg"}],"sources":{"cve":[{"id":"CVE-2021-43390","description":"An Out-of-Bounds Write vulnerability exists when reading a DGN file using Open Design Alliance Drawings SDK before 2022.11. The specific issue exists within the parsing of DGN files. Crafted data in a DGN file and lack of proper validation of input data can trigger a write operation past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.","status":"published","published":"2021-11-14T20:56:44Z","modified":"2024-08-04T03:55:28.615Z","updated_at":"2026-11-02T14:32:57.033395Z"}],"euvd":[{"id":"EUVD-2021-30325","description":"An Out-of-Bounds Write vulnerability exists when reading a DGN file using Open Design Alliance Drawings SDK before 2022.11. The specific issue exists within the parsing of DGN files. Crafted data in a DGN file and lack of proper validation of input data can trigger a write operation past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.","status":"published","published":"2021-11-14T20:56:44Z","modified":"2024-08-04T03:55:28Z","updated_at":"2026-11-03T03:24:14.245608Z"}],"ghsa":[{"id":"GHSA-6c82-vjcw-p9xg","title":"An Out-of-Bounds Write vulnerability exists when reading a DGN file using Open Design Alliance...","description":"An Out-of-Bounds Write vulnerability exists when reading a DGN file using Open Design Alliance Drawings SDK before 2022.11. The specific issue exists within the parsing of DGN files. Crafted data in a DGN file and lack of proper validation of input data can trigger a write operation past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.","status":"published","published":"2022-05-24T19:20:38Z","modified":"2023-01-30T05:03:50Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:55.198962Z"}],"nvd":[{"id":"CVE-2021-43390","description":"An Out-of-Bounds Write vulnerability exists when reading a DGN file using Open Design Alliance Drawings SDK before 2022.11. The specific issue exists within the parsing of DGN files. Crafted data in a DGN file and lack of proper validation of input data can trigger a write operation past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.","status":"published","published":"2021-11-14T21:15:08.31Z","modified":"2026-06-17T04:10:53.84Z","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":"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-787"],"updated_at":"2026-11-02T14:07:00.984108Z"}]}}