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Vulnerability record · CVE-2018-0891 · published 14 March 2018

CVE-2018-0891: Microsoft internet explorer memory leak vulnerability

Microsoft · Internet Explorer

ChakraCore, and Internet Explorer in Microsoft Windows 7 SP1, Windows Server 2008 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, and Internet Explorer and Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allow information disclosure, due to how the scripting engine handles objects in memory, aka "Scripting Engine Information Disclosure Vulnerability". This CVE ID is unique from CVE-2018-0939.

4.3 CVSS 3.0 Medium EPSS 14% · top 3.5% CWE-401 · Memory leak
4.3CVSS 3.0 base score, v2 4.3
14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
8References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

ChakraCore, and Internet Explorer in Microsoft Windows 7 SP1, Windows Server 2008 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, and Internet Explorer and Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allow information disclosure, due to how the scripting engine handles objects in memory, aka "Scripting Engine Information Disclosure Vulnerability". This CVE ID is unique from CVE-2018-0939.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/103309 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040507 Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0891 PatchVendor Advisory
https://www.exploit-db.com/exploits/44312/ ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/103309 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040507 Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0891 PatchVendor Advisory
https://www.exploit-db.com/exploits/44312/ ExploitThird Party AdvisoryVDB Entry

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-0891), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.