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CVE-2018-8639
CWE-404
Critical
90.7
RPSRPS range: 0–105; KEV-listed vulnerabilities can receive an exploitation amplifier.
Description
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8641.
Source: NVD
Signals
- CVSS
- 7.8
- High · v3.1
- EPSS
- 22.17%
- Probability of exploitation in the next 30 days (FIRST)
- CISA KEV
- In CISA KEV since Mar 2025
- Fix commit
- No known fix commit
- Sources: MoreFixes, FreshFixes
- Weakness
- CWE-404
- Published
- 12 Dec 2018
- Last modified 29 Oct 2025
How to read these signals: RPS · EPSS · CISA KEV · Data sources
Get this score from the API
curl -H "Authorization: Bearer dsec_live_xxxxxxxx" \
https://api.intelligence.devsecure.io/api/v1/rps/CVE-2018-8639Replace the placeholder with your key. Get a free API key or rank your own CVEs.
Data as of 8 Oct 2026, 05:16 UK time