Actively exploited · Published Aug 17, 2020 · Assigned by microsoft
CVE-2020-1464Windows Spoofing Vulnerability
High 7.8 Exploited
In plain English
A high-severity security flaw in Windows 10 Version 1507 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). The chance it is exploited in the next 30 days is estimated at 38.9% (higher than 99% of all known vulnerabilities). Apply updates per vendor instructions.
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by May 3, 2022.
Official 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 products (as reported)
Weakness: CWE-347 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
References
- https://medium.com/%40TalBeerySec/glueball-the-story-of-cve-2020-1464-50091a1f98bd x_refsource_MISC
- https://krebsonsecurity.com/2020/08/microsoft-put-off-fixing-zero-day-for-2-years/ x_refsource_MISC
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1464 x_refsource_MISC
- https://blog.virustotal.com/2019/01/distribution-of-malicious-jar-appended.html x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1464 government-resource