CVE-2018-8310 json
A tampering vulnerability exists when Microsoft Outlook does not properly handle specific attachment types when rendering HTML emails, aka…
published 2018-07-11 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19963
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.9%
- EPSS 5.9% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
A tampering vulnerability exists when Microsoft Outlook does not properly handle specific attachment types when rendering HTML emails, aka "Microsoft Office Tampering Vulnerability." This affects Microsoft Word, Microsoft Office.
Patch / fix
Exploit prediction
5.88% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Affected products
- Microsoft Microsoft Word
- Microsoft Microsoft Office
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2018-8310
patch, vendor-advisory
-
securityfocus.com
/bid/104615
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1041274
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-8310
- NVD CVE-2018-8310
Fencer Intel 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.