{"id":"CVE-2018-0798","aliases":["EUVD-2018-1604","GHSA-4prc-qxrc-76p6"],"status":"published","title":"Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and...","description":"Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka \"Microsoft Office Memory Corruption Vulnerability\".","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/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":0.95121,"percentile":0.99864,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-787"],"published":"2018-01-10T01:00:00Z","modified":"2026-06-17T01:31:40Z","kev":{"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2021-11-03"},{"source":"kev","since":"2021-11-03"}],"exploits":[{"source":"pocgithub","id":"Sunqiz/CVE-2018-0798-reproduction","title":"Sunqiz/CVE-2018-0798-reproduction","date":"2022-08-19","url":"https://github.com/Sunqiz/CVE-2018-0798-reproduction"}],"products":[{"vendor":"microsoft","product":"office"},{"vendor":"microsoft","product":"office_compatibility_pack"},{"vendor":"microsoft","product":"word"},{"vendor":"microsoft corporation","product":"equation editor"}],"references":[{"url":"http://www.securityfocus.com/bid/102370","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1040153","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0798","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://0patch.blogspot.com/2018/01/bringing-abandoned-equation-editor-back.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0798","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-0798"},{"url":"https://github.com/advisories/GHSA-4prc-qxrc-76p6"}],"sources":{"cve":[{"id":"CVE-2018-0798","description":"Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka \"Microsoft Office Memory Corruption Vulnerability\".","status":"published","published":"2018-01-10T01:00:00Z","modified":"2025-10-21T23:45:57.001Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:35:12.596526Z"}],"euvd":[{"id":"EUVD-2018-1604","description":"Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka \"Microsoft Office Memory Corruption Vulnerability\".","status":"published","published":"2018-01-10T01:00:00Z","modified":"2025-10-21T23:45:57Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"exploited_since":"2021-11-03","updated_at":"2026-11-02T20:31:23.427989Z"}],"ghsa":[{"id":"GHSA-4prc-qxrc-76p6","title":"Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and...","description":"Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka \"Microsoft Office Memory Corruption Vulnerability\".","status":"published","published":"2022-05-13T01:18:28Z","modified":"2025-10-22T00:32:31Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:04:05.954742Z"}],"kev":[{"id":"CVE-2018-0798","title":"Microsoft Office Memory Corruption Vulnerability","description":"Microsoft Office contains a memory corruption vulnerability due to the way objects are handled in memory. Successful exploitation allows for remote code execution in the context of the current user. This vulnerability is known to be chained with CVE-2018-0802.","cwes":["CWE-787"],"kev":{"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:17.050017Z"}],"nvd":[{"id":"CVE-2018-0798","description":"Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka \"Microsoft Office Memory Corruption Vulnerability\".","status":"published","published":"2018-01-10T01:29:00.713Z","modified":"2026-06-17T01:31:40.897Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:04:22.309028Z"}]}}