CVEvulnerability
CVE-2020-1464
CISA Known Exploited Vulnerability
Microsoft Windows Spoofing Vulnerability — Microsoft Windows
Microsoft Windows contains a spoofing vulnerability when Windows incorrectly validates file signatures, allowing an attacker to bypass security features and load improperly signed files.
- Added to KEV
- 2021-11-03
- Remediation due
- 2022-05-03
- Ransomware use
- Unknown
- Required action
- Apply updates per vendor instructions.
- Notes
- https://nvd.nist.gov/vuln/detail/CVE-2020-1464
- Status
- Analyzed
- Published
- 2020-08-17
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-347
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 configurations
• microsoft windows 10 1507
• microsoft windows 10 1607
• microsoft windows 10 1709
• microsoft windows 10 1803
• microsoft windows 10 1809
• microsoft windows 10 1903
• microsoft windows 10 1909
• microsoft windows 10 2004
• microsoft windows 7
• microsoft windows 8.1
• microsoft windows rt 8.1
• microsoft windows server 1903
• microsoft windows server 1909
• microsoft windows server 2004
• microsoft windows server 2008
• microsoft windows server 2008 r2
• microsoft windows server 2012
• microsoft windows server 2012 r2
• microsoft windows server 2016
• microsoft windows server 2019
Related
Weakness · CWE (1)
- CWE-347 Improper Verification of Cryptographic Signature weakness
References
- 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://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