A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input. An attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a HTML editing attack scenario, an attacker could trick a user into editing a specially crafted file that is designed to exploit the vulnerability. The security update addresses the vulnerability by modifying how MSHTML engine validates input.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 4.2, indicating it can be exploited remotely over the network but requires specific conditions to be met though user interaction is required and does not require pre-existing privileges . The vulnerability impacts limited data confidentiality, limited integrity, for affected systems. Impacting 9 products from microsoft, from microsoft, from microsoft and 6 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2020-08-17T19:15:20.663
2026-02-23T18:25:40.060
Modified
CVSSv3.1: 4.2 (MEDIUM)
AV:N/AC:H/Au:N/C:C/I:C/A:C
4.9
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | microsoft | internet_explorer | 11 | Yes |
| Operating System | microsoft | windows_10 | - | No |
| Operating System | microsoft | windows_10 | - | No |
| Operating System | microsoft | windows_10 | 1607 | No |
| Operating System | microsoft | windows_10 | 1607 | No |
| Operating System | microsoft | windows_10 | 1709 | No |
| Operating System | microsoft | windows_10 | 1803 | No |
| Operating System | microsoft | windows_10 | 1809 | No |
| Operating System | microsoft | windows_10 | 1903 | No |
| Operating System | microsoft | windows_10 | 1909 | No |
| Operating System | microsoft | windows_10 | 2004 | No |
| Operating System | microsoft | windows_7 | - | No |
| Operating System | microsoft | windows_8.1 | - | No |
| Operating System | microsoft | windows_rt_8.1 | - | No |
| Operating System | microsoft | windows_server_2012 | - | No |
| Operating System | microsoft | windows_server_2012 | r2 | No |
| Operating System | microsoft | windows_server_2016 | * | No |
| Operating System | microsoft | windows_server_2019 | - | No |
| Application | microsoft | internet_explorer | 9 | Yes |
| Operating System | microsoft | windows_server_2008 | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For microsoft's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.