A remote code execution vulnerability exists in Microsoft Office software when the…
Priority MEDIUM 53Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability." This affects Microsoft Excel Viewer, Microsoft PowerPoint Viewer, Microsoft Office, Microsoft Office Word Viewer.
Why it matters now
EPSS 0.21335 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Microsoft Excel Viewer | Microsoft Excel Viewer | — | No fix listed | CNA |
| Microsoft | Microsoft PowerPoint Viewer | Microsoft PowerPoint Viewer | — | No fix listed | CNA |
| Microsoft | Microsoft Office | 2016 Click-to-Run (C2R) for 32-bit editions; 2016 Click-to-Run (C2R) for 64-bit editions; 2016 for Mac; Compatibility Pack Service Pack 3 | — | No fix listed | CNA |
| Microsoft | Microsoft Office Word Viewer | Microsoft Office Word Viewer | — | No fix listed | CNA |
- Microsoft Excel Viewer VendorMicrosoft Affected Microsoft Excel Viewer Fixed in — No fix listed CNA
- Microsoft PowerPoint Viewer VendorMicrosoft Affected Microsoft PowerPoint Viewer Fixed in — No fix listed CNA
- Microsoft Office VendorMicrosoft Affected 2016 Click-to-Run (C2R) for 32-bit editions; 2016 Click-to-Run (C2R) for 64-bit editions; 2016 for Mac; Compatibility Pack Service Pack 3 Fixed in — No fix listed CNA
- Microsoft Office Word Viewer VendorMicrosoft Affected Microsoft Office Word Viewer Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:office:2016:*:*:*:*:mac_os:*:* | 2016 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:office:2016:*:*:*:click-to-run:*:*:* | 2016 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:office_compatibility_pack:-:sp3:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:office_powerpoint_viewer:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:office_word_viewer:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:office:2016:*:*:*:*:mac_os:*:* Versions 2016 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:office:2016:*:*:*:click-to-run:*:*:* Versions 2016 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:office_compatibility_pack:-:sp3:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:office_powerpoint_viewer:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:office_word_viewer:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-8281
- 2026-10-03 Alias added: GHSA-6wfr-mcgq-ph4v
More Microsoft Office vulnerabilities
- TI-2023-09240 Microsoft Outlook Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2019-01013 A remote code execution vulnerability exists in Microsoft Excel software when the… KEVCVSS 3.1HIGH 8.8
- TI-2019-00335 Command injection in Microsoft Office KEVCVSS 3.1HIGH 8.8
- TI-2018-00739 Out-of-bounds write in Microsoft Equation Editor KEVCVSS 3.1HIGH 8.8
- TI-2015-02130 Microsoft PowerPoint 2007 SP3, Word 2007 SP3, PowerPoint 2010 SP2, Word 2010 SP2… KEVCVSS 3.1HIGH 8.8
- TI-2015-01588 Microsoft Office 2013 SP1 and 2013 RT SP1 allows remote attackers to execute arbitrary… KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2018-8281 · CVE Program
- CVE-2018-8281 · NVD
- FIRST EPSS
- GHSA-6wfr-mcgq-ph4v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences