CVE-2020-0674VulnerabilityPublished 11/03/2021Updated 10/24/2026

CVE-2020-0674: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability

Affects Microsoft Internet ExplorerSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 11/03/2021
KEV deadline: 05/03/2022
EPSS: 86.9% chance of exploitation in 30 days – higher than 99% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2020-0674 (opens in a new tab)

Description

CVE-2020-0674 is a memory corruption vulnerability in the Microsoft Internet Explorer scripting engine. It arises from improper handling of objects in memory. Successful exploitation allows remote code execution with the privileges of the current user. This vulnerability has been exploited in the wild. No specific affected versions or patch information is provided in the input data.

Summary

Microsoft Internet Explorer contains a memory corruption vulnerability (CWE-416) in its scripting engine due to improper handling of objects in memory. This flaw can be exploited remotely to execute arbitrary code in the context of the current user. The vulnerability has been observed to be exploited in the wild, indicating active threat usage. No patch or remediation details are included in the provided data.

Impact

Exploitation of this vulnerability can lead to remote code execution under the current user's privileges, potentially allowing attackers to run arbitrary code on affected systems. This can result in compromise of the affected system depending on the user's rights.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users should consult Microsoft's official security updates for Internet Explorer to determine if a fix is available and apply it promptly. Until then, consider limiting use of Internet Explorer or running it with reduced privileges.

Weaknesses

CWE-416Use After Free (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 09:11:32 UTC

Weaknesses

References

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