VulnerabilityAnalyzed
CVE-2023-21823
Microsoft Windows Graphic Component Privilege Escalation Vulnerability
KEVHIGH 7.8EPSS 5.56%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 7 March 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Windows Graphics Component Remote Code Execution Vulnerability
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.56% probability · 92th percentile
- CISA KEV
- Listed 14 February 2023 · due 7 March 2023
- Weakness
- CWE-190
- Affected
- microsoft/windows 10 1507 · microsoft/windows 10 1607 · microsoft/windows 10 1809 · microsoft/windows 10 20h2 · microsoft/windows 10 21h2 · microsoft/windows 10 22h2 · microsoft/windows 11 21h2 · microsoft/windows 11 22h2 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022
- Source
- secure@microsoft.com
CISA notes
Apply updates per vendor instructions. https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-21823; https://nvd.nist.gov/vuln/detail/CVE-2023-21823
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21823Patch, Vendor Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21823Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21823US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.