--- title: "CVE-2020-0674: Use After Free | CubePath" description: "A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine…" language: en source: https://cubepath.com/security/cve/CVE-2020-0674 --- # CVE-2020-0674: Use After Free | CubePath ## Description A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0673, CVE-2020-0710, CVE-2020-0711, CVE-2020-0712, CVE-2020-0713, CVE-2020-0767. Official description from the CVE record, published by microsoft. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2020-0674) ## Key data ### CVSS 3.1 High 7.5 Score published by CISA-ADP in the CVE record. CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | High | The attack depends on conditions outside the attacker's control, so it takes preparation. | | Privileges required | None | No account or privileges are needed. | | User interaction | Required | A user has to do something first, such as opening a file or following a link. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | High | Serious or total effect on the secrecy of data. | | Integrity impact | High | Serious or total effect on the trustworthiness of data. | | Availability impact | High | Serious or total effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.86863 (86.9% probability) Percentile 99.7% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA Known Exploited Vulnerabilities This CVE is listed in the CISA KEV catalog. Name in the catalog Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability Added to the catalog Nov 3, 2021 Federal due date May 3, 2022 ### CISA assessment as of Feb 7, 2025 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Recorded by CISA as active Automatable no Technical impact total ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-416](https://cwe.mitre.org/data/definitions/416.html) Use After Free ## Affected products Products listed in the CVE record, as the CNA published them. - Microsoft Internet Explorer 10 - affected: Windows Server 2012 - Microsoft Internet Explorer 11 - affected: Windows 10 Version 1803 for 32-bit Systems - affected: Windows 10 Version 1803 for x64-based Systems - affected: Windows 10 Version 1803 for ARM64-based Systems - affected: Windows 10 Version 1809 for 32-bit Systems - affected: Windows 10 Version 1809 for x64-based Systems - affected: Windows 10 Version 1809 for ARM64-based Systems - affected: Windows Server 2019 - affected: Windows 10 Version 1709 for 32-bit Systems - affected: Windows 10 Version 1709 for x64-based Systems - affected: Windows 10 Version 1709 for ARM64-based Systems - affected: Windows 10 for 32-bit Systems - affected: Windows 10 for x64-based Systems - affected: Windows 10 Version 1607 for 32-bit Systems - affected: Windows 10 Version 1607 for x64-based Systems - affected: Windows Server 2016 - affected: Windows 7 for 32-bit Systems Service Pack 1 - affected: Windows 7 for x64-based Systems Service Pack 1 - affected: Windows 8.1 for 32-bit systems - affected: Windows 8.1 for x64-based systems - affected: Windows RT 8.1 - affected: Windows Server 2008 R2 for x64-based Systems Service Pack 1 - affected: Windows Server 2012 R2 - Microsoft Internet Explorer 11 on Windows 10 Version 1909 for 32-bit Systems - affected: unspecified - Microsoft Internet Explorer 11 on Windows 10 Version 1909 for x64-based Systems - affected: unspecified - Microsoft Internet Explorer 11 on Windows 10 Version 1909 for ARM64-based Systems - affected: unspecified - Microsoft Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems - affected: unspecified - Microsoft Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems - affected: unspecified - Microsoft Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems - affected: unspecified - Microsoft Internet Explorer 11 on Windows Server 2012 - affected: unspecified - Microsoft Internet Explorer 9 - affected: Windows Server 2008 for x64-based Systems Service Pack 2 - affected: Windows Server 2008 for 32-bit Systems Service Pack 2 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [portal.msrc.microsoft.com/en-US/security-guidance/advisory/…](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0674) - [github.com/maxpl0it/CVE-2020-0674-Exploit](https://github.com/maxpl0it/CVE-2020-0674-Exploit) - [packetstormsecurity.com/files/159137/Microsoft-Internet-Exp…](http://packetstormsecurity.com/files/159137/Microsoft-Internet-Explorer-11-Use-After-Free.html) - [packetstormsecurity.com/files/161309/Microsoft-Internet-Exp…](http://packetstormsecurity.com/files/161309/Microsoft-Internet-Explorer-11-Use-After-Free.html) - [packetstormsecurity.com/files/162565/Microsoft-Internet-Exp…](http://packetstormsecurity.com/files/162565/Microsoft-Internet-Explorer-8-11-Use-After-Free.html) ## Timeline 1. ID reserved Nov 4, 2019 2. Record published Feb 11, 2020 3. Added to CISA KEV Nov 3, 2021 4. Record last updated Oct 21, 2025 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:02 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)