Input validation error in Microsoft products - CVE-2019-1255
Published: September 23, 2019
Vulnerability identifier: #VU21290
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-1255
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft Security Essentials
Windows Defender
Microsoft Forefront Endpoint Protection
Microsoft Security Essentials
Windows Defender
Microsoft Forefront Endpoint Protection
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of files within the Microsoft Malware Protection Engine in Microsoft Defender. A remote attacker can create a specially crafted file, trick the victim into executing it and prevent legitimate accounts from executing legitimate system binaries.
How to mitigate CVE-2019-1255
Install updates from vendor's website.
This vulnerability was addressed in Microsoft Malware Protection Engine 1.1.16400.2.