CVE-2020-0674A 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'.
Updated under an hour ago ()
Does this affect you?
It affects Microsoft Internet Explorer 10 and 10 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Nov 3, 2021; federal agencies had to remediate by May 3, 2022. Treat that date as your deadline.
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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.
- CVSS
- 7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-416
- Known exploited
- Added to CISA KEV Nov 3, 2021; federal remediation due May 3, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 86.86% (percentile 100)
- Assigned by
- microsoft
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Microsoft Internet Explorer 10 microsoft:internet_explorer_10 (from the name) | Windows Server 2012 | CNA record |
Microsoft Internet Explorer 11 microsoft:internet_explorer_11 (from the name) | Windows 10 Version 1803 for 32-bit Systems; Windows 10 Version 1803 for x64-based Systems; Windows 10 Version 1803 for ARM64-based Systems; Windows 10 Version 1809 for 32-bit Systems; Windows 10 Version 1809 for x64-based Systems; Windows 10 Version 1809 for ARM64-based Systems; Windows Server 2019; Windows 10 Version 1709 for 32-bit Systems; and 14 more ranges | CNA record |
Microsoft Internet Explorer 11 on Windows 10 Version 1909 for 32-bit Systems microsoft:internet_explorer_11_on_windows_10_version_1909_for_32_bit_systems (from the name) | unspecified | CNA record |
Microsoft Internet Explorer 11 on Windows 10 Version 1909 for x64-based Systems microsoft:internet_explorer_11_on_windows_10_version_1909_for_x64_based_systems (from the name) | unspecified | CNA record |
Microsoft Internet Explorer 11 on Windows 10 Version 1909 for ARM64-based Systems microsoft:internet_explorer_11_on_windows_10_version_1909_for_arm64_based_systems (from the name) | unspecified | CNA record |
Microsoft Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems microsoft:internet_explorer_11_on_windows_10_version_1903_for_32_bit_systems (from the name) | unspecified | CNA record |
Microsoft Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems microsoft:internet_explorer_11_on_windows_10_version_1903_for_x64_based_systems (from the name) | unspecified | CNA record |
Microsoft Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems microsoft:internet_explorer_11_on_windows_10_version_1903_for_arm64_based_systems (from the name) | unspecified | CNA record |
Microsoft Internet Explorer 11 on Windows Server 2012 microsoft:internet_explorer_11_on_windows_server_2012 (from the name) | unspecified | CNA record |
Microsoft Internet Explorer 9 microsoft:internet_explorer_9 (from the name) | Windows Server 2008 for x64-based Systems Service Pack 2; Windows Server 2008 for 32-bit Systems Service Pack 2 | CNA record |
microsoft internet_explorer microsoft:internet_explorer | 9; 10; 11 | NVD |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0674x-refsource-misc, patch, vendor-advisory
- https://github.com/maxpl0it/CVE-2020-0674-Exploitx-refsource-misc, exploit, third-party-advisory
- http://packetstormsecurity.com/files/159137/Microsoft-Internet-Explorer-11-Use-After-Free.htmlx-refsource-misc, exploit, third-party-advisory, vdb-entry
- http://packetstormsecurity.com/files/161309/Microsoft-Internet-Explorer-11-Use-After-Free.htmlx-refsource-misc, exploit, third-party-advisory, vdb-entry
- http://packetstormsecurity.com/files/162565/Microsoft-Internet-Explorer-8-11-Use-After-Free.htmlx-refsource-misc, exploit, third-party-advisory, vdb-entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0674us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.