Improper input validation in Microsoft Windows Installer
Priority LOW 33CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- 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
Windows Installer in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1 and RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and 1709, Windows Server 2016 and Windows Server, version 1709 allows an elevation of privilege vulnerability due to how input is sanitized, aka "Windows Installer Elevation of Privilege Vulnerability".
Why it matters now
EPSS 0.01174 67th 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 | Windows Installer | Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1 and RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and 1709, Windows Server 2016 and Windows Server, version 1709 | — | No fix listed | CNA |
- Windows Installer VendorMicrosoft Affected Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1 and RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and 1709, Windows Server 2016 and Windows Server, version 1709 Fixed in — No fix listed CNA
CPE configurations NVD · 14
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1511:*:*:*:*:*:*:* | 1511 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* | 1607 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* | 1703 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* | 1709 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:* | all versions | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:* | r2 sp1 | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1511:*:*:*:*:*:*:* Versions 1511 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* Versions 1607 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* Versions 1703 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* Versions 1709 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:* Versions r2 sp1 Vulnerable ·Microsoft
Show 4 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:standard:*:*:* | r2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:* | 1709 | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:standard:*:*:* Versions r2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:* Versions 1709 Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0868
- 2026-10-03 Alias added: GHSA-gg3w-qqxm-qvp6
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Sources
- CVE-2018-0868 · CVE Program
- CVE-2018-0868 · NVD
- FIRST EPSS
- GHSA-gg3w-qqxm-qvp6 · 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