CVE-2018-0798

HIGH
8.8
CVSS Score
Published: January 10, 2018 at 01:00 AM UTC
Updated: June 17, 2026 at 01:31 AM UTC
3 products affected across 1 vendorOfficeWordOffice Compatibility Pack

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Severity
HIGH8.8
Exploitation
CISA KEV
Exploit prediction
EPSS 95%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score95.1%

EPSS (Exploit Prediction Scoring System) estimates a 95.1% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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.

Required Action
Apply updates per vendor instructions.
Ransomware Use
Unknown
Added to KEV
Nov 3, 2021
Remediation Due
May 3, 2022
1638 days overdue

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".

Affected

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

VDB Entryx_refsource_BIDBroken LinkThird Party Advisory
http://www.securityfocus.com/bid/102370
VDB Entryx_refsource_SECTRACKBroken LinkThird Party Advisory
http://www.securitytracker.com/id/1040153
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0798

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-787

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