{"id":"CVE-2021-34904","aliases":["EUVD-2021-21551","GHSA-f4v6-c6mp-8rx6"],"status":"published","title":"This vulnerability allows remote attackers to execute arbitrary code on affected installations of...","description":"This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DGN files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14877.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.02183,"percentile":0.82505,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122","CWE-787"],"published":"2022-01-13T21:43:37Z","modified":"2026-06-17T03:56:46Z","products":[{"vendor":"bentley","product":"bentley_view"},{"vendor":"bentley","product":"microstation"},{"vendor":"bentley","product":"view"}],"references":[{"url":"https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0009","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1493/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34904"},{"url":"https://github.com/advisories/GHSA-f4v6-c6mp-8rx6"}],"sources":{"cve":[{"id":"CVE-2021-34904","description":"This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DGN files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14877.","status":"published","published":"2022-01-13T21:43:37Z","modified":"2024-08-04T00:26:55.503Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2021-21551","description":"This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DGN files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14877.","status":"published","published":"2022-01-13T21:43:37Z","modified":"2024-08-04T00:26:55Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:24:31.977228Z"}],"ghsa":[{"id":"GHSA-f4v6-c6mp-8rx6","title":"This vulnerability allows remote attackers to execute arbitrary code on affected installations of...","description":"This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DGN files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14877.","status":"published","published":"2022-01-14T00:01:29Z","modified":"2023-02-03T05:04:34Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:53:34.195392Z"}],"nvd":[{"id":"CVE-2021-34904","description":"This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DGN files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14877.","status":"published","published":"2022-01-13T22:15:10.393Z","modified":"2026-06-17T03:56:46.723Z","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":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"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-122","CWE-787"],"updated_at":"2026-11-02T14:07:03.418194Z"}]}}