CVE-2018-0840 — HIGH (7.5) — White Hats Nepal

Vulnerability Description

Internet Explorer in Microsoft Windows 7 SP1, Windows Server 2008 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 allows remote code execution, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2018-0834, CVE-2018-0835, CVE-2018-0836, CVE-2018-0837, CVE-2018-0838, CVE-2018-0856, CVE-2018-0857, CVE-2018-0858, CVE-2018-0859, CVE-2018-0860, CVE-2018-0861, and CVE-2018-0866.

CVSS Score

7.5

HIGH

CVSS:3.0/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

Affected Products

Vendor	Product	Versions
Microsoft	Internet Explorer	11
Microsoft	Windows 7	-
Microsoft	Windows 8.1	All versions
Microsoft	Windows Rt 8.1	-
Microsoft	Windows Server 2008	r2
Microsoft	Windows Server 2012	r2
Microsoft	Edge	-
Microsoft	Windows 10	-
Microsoft	Windows Server 2016	-

Related Weaknesses (CWE)

CWE-787

References

http://www.securityfocus.com/bid/102886Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040369Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040372Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0840PatchVendor Advisory
https://www.exploit-db.com/exploits/44077/ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/102886Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040369Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040372Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0840PatchVendor Advisory
https://www.exploit-db.com/exploits/44077/ExploitThird Party AdvisoryVDB Entry

FAQ

What is CVE-2018-0840?

CVE-2018-0840 is a vulnerability with a CVSS score of 7.5 (HIGH). Internet Explorer in Microsoft Windows 7 SP1, Windows Server 2008 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,...

How severe is CVE-2018-0840?

CVE-2018-0840 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-0840?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Internet Explorer, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008.