{"id":"CVE-2022-33896","aliases":["EUVD-2022-36933","GHSA-9w8p-gv6j-vj3w"],"status":"published","title":"A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0...","description":"A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0.5357 parses XML-based office files. A specially-crafted malformed file can cause memory corruption by using memory before buffer start, which can lead to code execution. A victim would need to access a malicious file to trigger this vulnerability.","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":"2026-11-11","score":0.00528,"percentile":0.45129,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-124"],"published":"2022-10-07T15:05:08Z","modified":"2026-06-17T04:49:26Z","products":[{"vendor":"hancom","product":"hancom office 2020"},{"vendor":"hancom","product":"hancom_office_2020"},{"vendor":"hancom inc.","product":"hancom office 2020"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2022-1574","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-33896"},{"url":"https://github.com/advisories/GHSA-9w8p-gv6j-vj3w"}],"sources":{"cve":[{"id":"CVE-2022-33896","description":"A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0.5357 parses XML-based office files. A specially-crafted malformed file can cause memory corruption by using memory before buffer start, which can lead to code execution. A victim would need to access a malicious file to trigger this vulnerability.","status":"published","published":"2022-10-07T15:05:08.443Z","modified":"2025-04-15T18:49:15.593Z","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-124"],"updated_at":"2026-11-02T14:34:40.275153Z"}],"euvd":[{"id":"EUVD-2022-36933","description":"A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0.5357 parses XML-based office files. A specially-crafted malformed file can cause memory corruption by using memory before buffer start, which can lead to code execution. A victim would need to access a malicious file to trigger this vulnerability.","status":"published","published":"2022-10-07T15:05:08Z","modified":"2025-04-15T18:49:15Z","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":"2026-11-02T20:52:27.261894Z"}],"ghsa":[{"id":"GHSA-9w8p-gv6j-vj3w","title":"A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0...","description":"A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0.5357 parses XML-based office files. A specially-crafted malformed file can cause memory corruption by using memory before buffer start, which can lead to code execution. A victim would need to access a malicious file to trigger this vulnerability.","status":"published","published":"2022-10-07T18:15:45Z","modified":"2023-02-02T05:01:16Z","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"}],"cwes":["CWE-124"],"updated_at":"2026-11-02T14:51:09.214606Z"}],"nvd":[{"id":"CVE-2022-33896","description":"A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0.5357 parses XML-based office files. A specially-crafted malformed file can cause memory corruption by using memory before buffer start, which can lead to code execution. A victim would need to access a malicious file to trigger this vulnerability.","status":"published","published":"2022-10-07T15:15:15.553Z","modified":"2026-06-17T04:49:26.667Z","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"}],"cwes":["CWE-124"],"updated_at":"2026-11-02T14:07:29.026521Z"}]}}