CVE-2018-8429 json
An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel I…
published 2018-09-13 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-20065
- cvss
- 5.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 12.3%
- EPSS 12.3% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Microsoft Excel Viewer, Microsoft Office, Microsoft Excel.
Patch / fix
Exploit prediction
12.26% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.5 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Affected products
- Microsoft Microsoft Excel Viewer
- Microsoft Microsoft Office
- Microsoft Microsoft Excel
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2018-8429
patch, vendor-advisory
-
securityfocus.com
/bid/105219
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1041630
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-8429
- NVD CVE-2018-8429
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.