CVE-2018-0802
Microsoft Office Memory Corruption Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply updates per vendor instructions.
CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2018-0802
Description
Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allow a remote code execution vulnerability due to the way objects are handled in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE is unique from CVE-2018-0797 and CVE-2018-0812.
Severity
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation Context
as of October 17, 2026- CISA added CVE-2018-0802 to the KEV catalog 1,393 days after its CVE record was published.
- It is one of 391 Microsoft entries in the CISA KEV catalog, and one of 83 added in 2021.
- Its current EPSS score (93.3%) is higher than that of 76% of CISA KEV entries.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft Corporation | Microsoft Corporation Equation Editor | Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 |
References
7 Links- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0802
- https://github.com/rxwx/CVE-2018-0802
- https://0patch.blogspot.com/2018/01/the-bug-that-killed-equation-editor-how.html
- https://github.com/zldww2011/CVE-2018-0802_POC
- https://research.checkpoint.com/another-office-equation-rce-vulnerability/
Record Details
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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.