{"id":"CVE-2016-4294","aliases":["EUVD-2016-5294","GHSA-4hrr-9ph7-2w2p"],"status":"published","title":"When opening a Hangul Hcell Document (.cell) and processing a property record within the Workbook...","description":"When opening a Hangul Hcell Document (.cell) and processing a property record within the Workbook stream, Hancom Office 2014 will attempt to allocate space for an element using a length from the file. When copying user-supplied data to this buffer, however, the application will use a different size which leads to a heap-based buffer overflow. This vulnerability can lead to code-execution under the context of the application.","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":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02414,"percentile":0.84238,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2017-01-06T21:00:00Z","modified":"2026-06-17T00:47:18Z","products":[{"vendor":"hancom","product":"hancom office"},{"vendor":"hancom","product":"hancom_office_2014"}],"references":[{"url":"http://www.talosintelligence.com/reports/TALOS-2016-0149/","tags":["x_refsource_MISC","x_transferred","Exploit","Technical Description","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/92327","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4294"},{"url":"http://www.talosintelligence.com/reports/TALOS-2016-0149"},{"url":"https://github.com/advisories/GHSA-4hrr-9ph7-2w2p"}],"sources":{"cve":[{"id":"CVE-2016-4294","description":"When opening a Hangul Hcell Document (.cell) and processing a property record within the Workbook stream, Hancom Office 2014 will attempt to allocate space for an element using a length from the file. When copying user-supplied data to this buffer, however, the application will use a different size which leads to a heap-based buffer overflow. This vulnerability can lead to code-execution under the context of the application.","status":"published","published":"2017-01-06T21:00:00Z","modified":"2024-08-06T00:25:14.117Z","updated_at":"2026-11-02T14:33:35.488991Z"}],"euvd":[{"id":"EUVD-2016-5294","description":"When opening a Hangul Hcell Document (.cell) and processing a property record within the Workbook stream, Hancom Office 2014 will attempt to allocate space for an element using a length from the file. When copying user-supplied data to this buffer, however, the application will use a different size which leads to a heap-based buffer overflow. This vulnerability can lead to code-execution under the context of the application.","status":"published","published":"2017-01-06T21:00:00Z","modified":"2024-08-06T00:25:14Z","updated_at":"2026-11-03T02:22:47.294859Z"}],"ghsa":[{"id":"GHSA-4hrr-9ph7-2w2p","title":"When opening a Hangul Hcell Document (.cell) and processing a property record within the Workbook...","description":"When opening a Hangul Hcell Document (.cell) and processing a property record within the Workbook stream, Hancom Office 2014 will attempt to allocate space for an element using a length from the file. When copying user-supplied data to this buffer, however, the application will use a different size which leads to a heap-based buffer overflow. This vulnerability can lead to code-execution under the context of the application.","status":"published","published":"2022-05-17T03:05:16Z","modified":"2025-04-20T03:31:53Z","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"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:01:38.976438Z"}],"nvd":[{"id":"CVE-2016-4294","description":"When opening a Hangul Hcell Document (.cell) and processing a property record within the Workbook stream, Hancom Office 2014 will attempt to allocate space for an element using a length from the file. When copying user-supplied data to this buffer, however, the application will use a different size which leads to a heap-based buffer overflow. This vulnerability can lead to code-execution under the context of the application.","status":"published","published":"2017-01-06T21:59:01.257Z","modified":"2026-06-17T00:47:18.217Z","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":"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-119"],"updated_at":"2026-11-02T14:03:33.686843Z"}]}}