CVE-2018-0798

8.8 highKEVEPSS 95%

High (8.8) in Microsoft Office. In CISA KEV since 2021-11-03. EPSS 95% chance of exploitation in the next 30 days.

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

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 95% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CISA KEV: listed 2021-11-03, due 2022-05-03
CWE: CWE-787
Published: 2018-01-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

microsoft:office
microsoft:office_compatibility_pack
microsoft:word

References

http://www.securityfocus.com/bid/102370
http://www.securitytracker.com/id/1040153
https://0patch.blogspot.com/2018/01/bringing-abandoned-equation-editor-back.html
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0798
http://www.securityfocus.com/bid/102370

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