Actively exploited · Published Jan 10, 2018 · Assigned by microsoft
CVE-2018-0798
High 8.8 Exploited
In plain English
A high-severity out-of-bounds write in Equation Editor from Microsoft Corporation. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). The chance it is exploited in the next 30 days is estimated at 95.1% (higher than 99.9% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Apply updates per vendor instructions.
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by May 3, 2022.
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft Corporation | Equation Editor | Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- 102370 vdb-entry, x_refsource_BID
- 1040153 vdb-entry, x_refsource_SECTRACK
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0798 x_refsource_CONFIRM
- https://0patch.blogspot.com/2018/01/bringing-abandoned-equation-editor-back.html x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0798 government-resource