CVE-2018-8373 : A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10. This CVE ID is unique from CVE-2018-8353, CVE-2018-8355, CVE-2018-8359, CVE-2018-8371, CVE-2018-8372, CVE-2018-8385, CVE-2018-8389, CVE-2018-8390.

Published 2018-08-15 17:29:07

Updated 2020-08-24 17:37:01

Source Microsoft Corporation

View at NVD, CVE.org

Vulnerability category: Memory CorruptionExecute code

CVE-2018-8373 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:

Microsoft Scripting Engine Memory Corruption Vulnerability

CISA required action:

Apply updates per vendor instructions.

CISA description:

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer.

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2018-8373

Added on 2022-03-25 Action due date 2022-04-15

Exploit prediction scoring system (EPSS) score for CVE-2018-8373

EPSS FAQ

89.63%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 99 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-8373

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.6	HIGH	AV:N/AC:H/Au:N/C:C/I:C/A:C	4.9	10.0	NIST
Access Vector: Network Access Complexity: High Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
7.5	HIGH	CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H	1.6	5.9	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

References for CVE-2018-8373

http://www.securityfocus.com/bid/105037

Microsoft Internet Explorer CVE-2018-8373 Remote Memory Corruption Vulnerability
Third Party Advisory;VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8373

CVE-2018-8373 | Scripting Engine Memory Corruption Vulnerability
Patch;Vendor Advisory
http://www.securitytracker.com/id/1041483

Microsoft Internet Explorer Object Memory Handling and Validation Flaws Let Remote Users Execute Arbitrary Code - SecurityTracker
Third Party Advisory;VDB Entry

CVEs referencing this url

Products affected by CVE-2018-8373

Microsoft » Internet Explorer » Version: 9
cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
Microsoft » Internet Explorer » Version: 10
cpe:2.3:a:microsoft:internet_explorer:10:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows Server 2012 » Version: N/A
Microsoft » Internet Explorer » Version: 11
cpe:2.3:a:microsoft:internet_explorer:11:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: N/A
When used together with: Microsoft » Windows 10 » Version: 1607
When used together with: Microsoft » Windows 10 » Version: 1703
When used together with: Microsoft » Windows 10 » Version: 1709
When used together with: Microsoft » Windows 10 » Version: 1803
When used together with: Microsoft » Windows 7 » Update SP1
When used together with: Microsoft » Windows 8.1
When used together with: Microsoft » Windows Rt 8.1
When used together with: Microsoft » Windows Server 2008 » Version: R2 Update SP1
When used together with: Microsoft » Windows Server 2012 » Version: R2
When used together with: Microsoft » Windows Server 2016 » Version: N/A

Vulnerability Details : CVE-2018-8373

CVE-2018-8373 is in the CISA Known Exploited Vulnerabilities Catalog

Exploit prediction scoring system (EPSS) score for CVE-2018-8373

CVSS scores for CVE-2018-8373

CWE ids for CVE-2018-8373

References for CVE-2018-8373

Products affected by CVE-2018-8373