High severity · published May 9, 2018
CVE-2018-8174
Microsoft Windows VBScript Engine Out-of-Bounds Write Vulnerability
RansomwareIn wildKEV
7.5
CVSS
88.2%
EPSS
Yes
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)88.2% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Feb 15, 2022
Federal remediation dueAug 15, 2022
Ransomware campaign useKnown
Affected products
Which versions
WI
Windows · Microsoft
32-bit Systems; Version 1607 for 32-bit Systems; Version 1607 for x64-based Systems; Version 1703 for 32-bit Systems; Version 1703 for x64-based Systems; Version 1709 for 32-bit Systems; +4 more · source: vendor, KEV
W1
Windows 10 Servers · Microsoft
version 1709 (Server Core Installation); version 1803 (Server Core Installation) · source: vendor
W7
Windows 7 · Microsoft
32-bit Systems Service Pack 1; x64-based Systems Service Pack 1 · source: vendor, NVD
W8
Windows 8.1 · Microsoft
32-bit systems; x64-based systems · source: vendor, NVD
WR
Windows RT 8.1 · Microsoft
Windows RT 8.1 · source: vendor, NVD
WS
Windows Server 2008 · Microsoft
32-bit Systems Service Pack 2; 32-bit Systems Service Pack 2 (Server Core installation); Itanium-Based Systems Service Pack 2; x64-based Systems Service Pack 2; x64-based Systems Service Pack 2 (Server Core installation) · source: vendor, NVD
WS
Windows Server 2008 R2 · Microsoft
Itanium-Based Systems Service Pack 1; x64-based Systems Service Pack 1; x64-based Systems Service Pack 1 (Server Core installation) · source: vendor
WS
Windows Server 2012 · Microsoft
(Server Core installation) · source: vendor, NVD
WS
Windows Server 2012 R2 · Microsoft
(Server Core installation) · source: vendor
WS
Windows Server 2016 · Microsoft
(Server Core installation) · source: vendor, NVD
W1
Windows 10 1607 · Microsoft
All versions, or not specified · source: NVD
W1
Windows 10 1703 · Microsoft
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-8174
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-8174
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
exploit
https://www.exploit-db.com/exploits/44741/
x_refsource_MISC
https://blog.0patch.com/2018/05/a-single-instruction-micropatch-for.html
x_refsource_CONFIRM
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8174
vdb-entry
http://www.securityfocus.com/bid/103998
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