CVE-2020-0674
Published: November 3, 2021
Official Description
Microsoft Internet Explorer contains a memory corruption vulnerability due to the way the Scripting Engine handles objects in memory. Successful exploitation could allow remote code execution in the context of the current user.
CISA KEV Advisory
Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability
Microsoft Internet Explorer contains a memory corruption vulnerability due to the way the Scripting Engine handles objects in memory. Successful exploitation could allow remote code execution in the context of the current user.
Apply updates per vendor instructions.
Risk Analysis
This vulnerability in Microsoft Internet Explorer's Scripting Engine can lead to memory corruption, allowing an attacker to execute code remotely with the same permissions as the current user. Its high EPSS score of 0.93638 and inclusion in CISA's KEV catalog indicate a very high likelihood of active exploitation and significant risk.
Active exploitation of this vulnerability has been observed in the wild. Given the nature of the flaw, it is remotely exploitable.
Users should apply the latest security updates for Microsoft Internet Explorer. Consider using alternative, more modern browsers for daily use.
Technical Analysis
CVE-2020-0674 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-2020-0674 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 (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-0674 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