CVE-2018-8577 in the critical feed json
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka…
published 2018-11-14 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-20194
- cvss
- 7.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 19.1%
- EPSS 19.1% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known
Summary
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka "Microsoft Excel Remote Code Execution Vulnerability." This affects Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8574.
Patch / fix
Exploit prediction
19.06% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Affected products
- Microsoft Microsoft Office
- Microsoft Microsoft Excel
- Microsoft Microsoft Excel Viewer
- Microsoft Excel
- Microsoft Office
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2018-8577
patch, vendor-advisory
-
securityfocus.com
/bid/105834
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1042134
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-8577
- NVD CVE-2018-8577
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.