CVEs / CVE-2018-8120
CVE-2018-8120: Microsoft Win32k Privilege Escalation Vulnerability
- Known exploited in the CISA KEV catalog since 15 Mar 2022
- high 7 CVSS 3.1 (NVD)
- EPSS 73.2% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
A privilege escalation vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory.
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 Server 2008, Windows 7, Windows Server 2008 R2. This CVE ID is unique from CVE-2018-8124, CVE-2018-8164, CVE-2018-8166.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows Server 2008 | 32-bit Systems Service Pack 2 | — |
| Microsoft Windows Server 2008 | 32-bit Systems Service Pack 2 (Server Core installation) | — |
| Microsoft Windows Server 2008 | Itanium-Based Systems Service Pack 2 | — |
| Microsoft Windows Server 2008 | x64-based Systems Service Pack 2 | — |
| Microsoft Windows Server 2008 | x64-based Systems Service Pack 2 (Server Core installation) | — |
| Microsoft Windows 7 | 32-bit Systems Service Pack 1 | — |
| Microsoft Windows 7 | x64-based Systems Service Pack 1 | — |
| Microsoft Windows Server 2008 R2 | Itanium-Based Systems Service Pack 1 | — |
| Microsoft Windows Server 2008 R2 | x64-based Systems Service Pack 1 | — |
| Microsoft Windows Server 2008 R2 | x64-based Systems Service Pack 1 (Server Core installation) | — |
Exploitation
| In CISA KEV since | 15 Mar 2022 |
|---|---|
| Due date for US federal agencies | 5 Apr 2022 |
| Used in ransomware campaigns | Known |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 7 highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-404 |
References
- CVE-2018-8120 on NVD
- CVE-2018-8120 in the CISA KEV catalog
- http://www.securityfocus.com/bid/104034 Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040849 Broken Link, Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8120 Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/45653/ Exploit, Third Party Advisory, VDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8120 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.