CVE DATABASE / CVE-2020-0674
CVE-2020-0674
Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability
Confirmed exploited in the wild. Added 2021-11-03.
Federal remediation due 2022-05-03.
Required action: Apply updates per vendor instructions.
Summary
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 3.1 breakdown
| Base score | 7.5 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | HIGH |
| Privileges required | NONE |
| User interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
Use our free CVE Lookup tool for the latest NVD record, or browse the full CISA KEV catalog.
References
- http://packetstormsecurity.com/files/159137/Microsoft-Internet-Explorer-11-Use-After-Free.html
- http://packetstormsecurity.com/files/161309/Microsoft-Internet-Explorer-11-Use-After-Free.html
- http://packetstormsecurity.com/files/162565/Microsoft-Internet-Explorer-8-11-Use-After-Free.html
- https://github.com/maxpl0it/CVE-2020-0674-Exploit
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0674
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0674
Data: NIST NVD + CISA KEV. NVD last modified 2025-10-29. Always verify against the vendor advisory before acting.