CVEs / CVE-2020-1464
CVE-2020-1464: Microsoft Windows Spoofing Vulnerability
- Known exploited in the CISA KEV catalog since 3 Nov 2021
- low 2.1 CVSS 2.0 (NVD)
- EPSS 38.9% chance of exploitation in the next 30 days, higher than 98% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Microsoft Windows contains a spoofing vulnerability when Windows incorrectly validates file signatures, allowing an attacker to bypass security features and load improperly signed files.
Description
A spoofing vulnerability exists when Windows incorrectly validates file signatures. An attacker who successfully exploited this vulnerability could bypass security features and load improperly signed files. In an attack scenario, an attacker could bypass security features intended to prevent improperly signed files from being loaded. The update addresses the vulnerability by correcting how Windows validates file signatures.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows 10 Version 1803 | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1809 | from 10.0.0, before publication | publication |
| Microsoft Windows Server 2019 | from 10.0.0, before publication | publication |
| Microsoft Windows Server 2019 (Server Core installation) | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1909 | from 10.0.0, before publication | publication |
| Microsoft Windows Server, version 1909 (Server Core installation) | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1709 for 32-bit Systems | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1709 | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1903 for 32-bit Systems | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1903 for x64-based Systems | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1903 for ARM64-based Systems | from 10.0.0, before publication | publication |
| Microsoft Windows Server, version 1903 (Server Core installation) | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 2004 | from 10.0.0, before publication | publication |
| Microsoft Windows Server version 2004 | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1507 | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1607 | from 10.0.0, before publication | publication |
| Microsoft Windows Server 2016 | from 10.0.0, before publication | publication |
| Microsoft Windows Server 2016 (Server Core installation) | from 10.0.0, before publication | publication |
| Microsoft Windows 7 | from 6.1.0, before publication | publication |
| Microsoft Windows 7 Service Pack 1 | from 6.1.0, before publication | publication |
| Microsoft Windows 8.1 | from 6.3.0, before publication | publication |
| Microsoft Windows Server 2008 Service Pack 2 | from 6.0.0, before publication | publication |
| Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) | from 6.0.0, before publication | publication |
| Microsoft Windows Server 2008 Service Pack 2 | from 6.0.0, before publication | publication |
| Microsoft Windows Server 2008 R2 Service Pack 1 | from 6.1.0, before publication | publication |
| Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) | from 6.0.0, before publication | publication |
| Microsoft Windows Server 2012 | from 6.2.0, before publication | publication |
| Microsoft Windows Server 2012 (Server Core installation) | from 6.2.0, before publication | publication |
| Microsoft Windows Server 2012 R2 | from 6.3.0, before publication | publication |
| Microsoft Windows Server 2012 R2 (Server Core installation) | from 6.3.0, before publication | publication |
Exploitation
| In CISA KEV since | 3 Nov 2021 |
|---|---|
| Due date for US federal agencies | 3 May 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 2.0 | 2.1 lowAV:L/AC:L/Au:N/C:N/I:P/A:NScored by NVD |
|---|---|
| Weakness | CWE-347 |
References
- CVE-2020-1464 on NVD
- CVE-2020-1464 in the CISA KEV catalog
- https://blog.virustotal.com/2019/01/distribution-of-malicious-jar-appended.html Third Party Advisory
- https://krebsonsecurity.com/2020/08/microsoft-put-off-fixing-zero-day-for-2-years/ Issue Tracking, Third Party Advisory
- https://medium.com/%40TalBeerySec/glueball-the-story-of-cve-2020-1464-50091a1f98bd Exploit, Third Party Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1464 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1464 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.