May 2018:
CVE-2018-8174 Published on May 9, 2018
A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
Known Exploited Vulnerability
This Microsoft Windows VBScript Engine Out-of-Bounds Write Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution".
The following remediation steps are recommended / required by August 15, 2022: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2018-8174 is exploitable with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2018-8174 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2018-8174
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Affected Versions
Microsoft Windows 7:- Version 32-bit Systems Service Pack 1 is affected.
- Version x64-based Systems Service Pack 1 is affected.
- Version (Server Core installation) is affected.
- Version Windows RT 8.1 is affected.
- Version 32-bit Systems Service Pack 2 is affected.
- Version 32-bit Systems Service Pack 2 (Server Core installation) is affected.
- Version Itanium-Based Systems Service Pack 2 is affected.
- Version x64-based Systems Service Pack 2 is affected.
- Version x64-based Systems Service Pack 2 (Server Core installation) is affected.
- Version (Server Core installation) is affected.
- Version 32-bit systems is affected.
- Version x64-based systems is affected.
- Version (Server Core installation) is affected.
- Version Itanium-Based Systems Service Pack 1 is affected.
- Version x64-based Systems Service Pack 1 is affected.
- Version x64-based Systems Service Pack 1 (Server Core installation) is affected.
- Version 32-bit Systems is affected.
- Version Version 1607 for 32-bit Systems is affected.
- Version Version 1607 for x64-based Systems is affected.
- Version Version 1703 for 32-bit Systems is affected.
- Version Version 1703 for x64-based Systems is affected.
- Version Version 1709 for 32-bit Systems is affected.
- Version Version 1709 for x64-based Systems is affected.
- Version Version 1803 for 32-bit Systems is affected.
- Version Version 1803 for x64-based Systems is affected.
- Version x64-based Systems is affected.
- Version version 1709 (Server Core Installation) is affected.
- Version version 1803 (Server Core Installation) is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.