Skip to main content

Windows CVE-2018-8174

HIGH
Out-of-bounds Write (CWE-787)
2018-05-09 secure@microsoft.com
7.5
CVSS 3.1 · NVD
Share

Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Analysis Generated
Mar 26, 2026 - 11:18 vuln.today
Added to CISA KEV
Oct 28, 2025 - 14:13 cisa
CISA KEV
PoC Detected
Oct 28, 2025 - 14:13 vuln.today
Public exploit code
Patch released
Oct 28, 2025 - 14:13 nvd
Patch available
CVE Published
May 09, 2018 - 19:29 nvd
HIGH 7.5

DescriptionCVE.org

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.

AnalysisAI

The Windows VBScript engine contains a remote code execution vulnerability in object handling that allows full system compromise through crafted web pages, exploited in the wild as a zero-day before the May 2018 patch.

Technical ContextAI

The CWE-787 out-of-bounds write in the VBScript engine (vbscript.dll) is triggered when processing crafted VBScript code that manipulates object references. The exploit uses use-after-free techniques to gain arbitrary read/write primitives, enabling full code execution. Delivered through IE or Office documents embedding VBScript.

Affected ProductsAI

Microsoft Windows 7 through Windows 10 Microsoft Windows Server 2008 through Server 2016 Internet Explorer (VBScript engine) Microsoft Office (via embedded VBScript)

RemediationAI

Apply Microsoft security update. Disable VBScript in IE via registry or Group Policy. Restrict IE to trusted sites only. Use modern browsers that don't support VBScript.

CVE-2021-40444 HIGH POC
8.8 Sep 15

Windows MSHTML component contains a remote code execution vulnerability that allows attackers to craft malicious ActiveX

CVE-2021-1732 HIGH POC
7.8 Feb 25

Windows Win32k contains an out-of-bounds write vulnerability enabling local privilege escalation to SYSTEM, exploited by

CVE-2019-0803 HIGH POC
7.8 Apr 09

Windows Win32k fails to properly handle objects in memory, allowing local privilege escalation exploited in the wild in

CVE-2020-1472 MEDIUM POC
5.5 Aug 17

A privilege escalation vulnerability (CVSS 5.5). Risk factors: actively exploited (KEV-listed), EPSS 94% exploitation pr

CVE-2025-33053 HIGH POC
8.8 Jun 10

Windows Internet Shortcut Files (.url) contain an external control vulnerability (CVE-2025-33053, CVSS 8.8) that enables

CVE-2025-33073 HIGH POC
8.8 Jun 10

Windows SMB contains an improper access control vulnerability (CVE-2025-33073, CVSS 8.8) enabling authenticated attacker

CVE-2025-13315 CRITICAL POC
9.3 Nov 19

Twonky Server 8.5.2 on Linux and Windows allows unauthenticated access to the admin log file through a web service API b

CVE-2013-10047 CRITICAL POC
9.3 Aug 01

An unrestricted file upload vulnerability exists in MiniWeb HTTP Server <= Build 300 that allows unauthenticated remote

CVE-2012-10030 CRITICAL POC
9.3 Aug 05

FreeFloat FTP Server contains multiple critical design flaws that allow unauthenticated remote attackers to upload arbit

CVE-2025-34101 CRITICAL POC
9.3 Jul 10

Serviio Media Server versions 1.4 through 1.8 on Windows contain an unauthenticated command injection in the /rest/actio

CVE-2025-13316 HIGH POC
8.2 Nov 19

Twonky Server 8.5.2 uses hard-coded cryptographic keys for encrypting the administrator password. Combined with the cred

CVE-2025-34095 CRITICAL POC
9.3 Jul 10

Mako Server versions 2.5 and 2.6 contain an unauthenticated OS command injection via the tutorial interface at examples/

Share

CVE-2018-8174 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy