CVE-2018-8427
An information disclosure vulnerability exists in the way that Microsoft Graphics Components handle objects in memory, aka "Microsoft…
- 5.5MediumCVSS base score
- 2.3%Exploitation in 30 daysEPSS · top 17% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
An information disclosure vulnerability exists in the way that Microsoft Graphics Components handle objects in memory, aka "Microsoft Graphics Components Information Disclosure Vulnerability." This affects Microsoft Office, Microsoft Office Word Viewer, Office 365 ProPlus, Windows Server 2008, Microsoft PowerPoint Viewer, Microsoft Excel Viewer.
Timeline
ID reserved
By microsoft
- 7 months later
· 7 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 2.3% · top 17% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 2016 for Mac
- affected 2019 for 32-bit editions
- affected 2019 for 64-bit editions
- affected Compatibility Pack Service Pack 3
Microsoft · Microsoft Office Word Viewer
- affected Microsoft Office Word Viewer
Microsoft · Windows Server 2008
- affected 32-bit Systems Service Pack 2
- affected 32-bit Systems Service Pack 2 (Server Core installation)
- affected Itanium-Based Systems Service Pack 2
- affected x64-based Systems Service Pack 2
- affected x64-based Systems Service Pack 2 (Server Core installation)
Microsoft · Microsoft PowerPoint Viewer
- affected 2007
- affected 365 ProPlus for 32-bit Systems
- affected 365 ProPlus for 64-bit Systems
Microsoft · Microsoft Excel Viewer
- affected 2007 Service Pack 3
References
3
- 1041823 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 105453 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8427 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-20063 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-8427)Record last updated .