{"id":"CVE-2016-4294","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-4294","generatedAt":"2026-10-27T18:46:44.717Z","title":"When copying user-supplied data to this buffer, however, the application will use a different size which leads to a heap-based buffer overflow.","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.","published":"2017-01-06T21:59:01.000Z","lastModified":"2026-06-17T00:47:18.000Z","status":"Modified","sourceIdentifier":"cret@cert.org","cvss":{"version":"3.0","score":7.8,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["hancom/hancom office 2014"],"epss":{"score":0.02414,"percentile":0.84016,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/92327","source":"cret@cert.org"},{"url":"http://www.talosintelligence.com/reports/TALOS-2016-0149/","tags":["Exploit","Technical Description","Third Party Advisory","VDB Entry"],"source":"cret@cert.org"},{"url":"http://www.securityfocus.com/bid/92327","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.talosintelligence.com/reports/TALOS-2016-0149/","tags":["Exploit","Technical Description","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-4294","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}