VulnerabilityAnalyzed
CVE-2018-8120
Microsoft Win32k Privilege Escalation Vulnerability
KEVHIGH 7.0EPSS 73.7%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 5 April 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 73.72% probability · 99th percentile
- CISA KEV
- Listed 15 March 2022 · due 5 April 2022 · used in ransomware campaigns
- Weakness
- CWE-404
- Affected
- microsoft/windows 7 · microsoft/windows server 2008
- Source
- secure@microsoft.com
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2018-8120
References
- http://www.securityfocus.com/bid/104034Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040849Broken Link, Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8120Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/45653/Exploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/104034Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040849Broken Link, Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8120Patch, 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-2018-8120US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.