Reference page — cumulative record through Thursday, October 8, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2018-0798

CVE-2018-0798HIGH

Microsoft Office

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  U  H  H  H    8.8   .9512   99.9   YES

AFFECTED
  Product          Versions                                                                                          Fixed
  Equation Editor  Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 –  —

TIMELINE
  Dec 1   Reserved by microsoft
  Jan 10  Published (CNA: microsoft)
  Nov 3   Added to CISA KEV, remediation due 2022-05-03

CWE-787 · CNA: microsoft · CVSS v3.1 · 5 references · KEV due May 3, 2022

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".

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
December 1, 2017	Reserved	Reserved by microsoft
January 10, 2018	Published	Published (CNA: microsoft)
November 3, 2021	KEV ADDED	Added to CISA KEV, remediation due 2022-05-03

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Microsoft Corporation	Equation Editor	—	Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016	—

Weaknesses

CWE-787

References (5)

http://www.securityfocus.com/bid/102370 [vdb-entry, x_refsource_BID]
http://www.securitytracker.com/id/1040153 [vdb-entry, x_refsource_SECTRACK]
https://0patch.blogspot.com/2018/01/bringing-abandoned-equation-editor-back.html [x_refsource_MISC]
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0798 [x_refsource_CONFIRM]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0798 [government-resource]

Authoritative record: CVE-2018-0798 at cve.org

Vendors: microsoft

Weaknesses: CWE-787

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2018-0798 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Thursday, October 8, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.