CVE-2022-41128
Published: November 8, 2022
Official Description
Microsoft Windows contains an unspecified vulnerability in the JScript9 scripting language which allows for remote code execution.
CISA KEV Advisory
Microsoft Windows Scripting Languages Remote Code Execution Vulnerability
Microsoft Windows contains an unspecified vulnerability in the JScript9 scripting language which allows for remote code execution.
Apply updates per vendor instructions.
Risk Analysis
An unspecified vulnerability in the JScript9 scripting language within Microsoft Windows allows for remote code execution. The high EPSS score and confirmed exploitation by CISA highlight this as a critical and actively exploited remote code execution flaw.
This vulnerability has been actively exploited in the wild. The remote code execution capability suggests it can be exploited over a network, potentially through malicious web content or documents.
Apply the latest security updates and patches for Microsoft Windows. Ensure that all systems are running supported versions of Windows and that JScript9 is updated.
Technical Analysis
CVE-2022-41128 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2022-41128 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-41128 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1