CVE-2018-8174
HIGH severity · CVSS 7.5 · Out-of-bounds write · actively exploited (CISA KEV)
7.5CVSS HIGH ● exploited ⚠ ransomware
🔴 Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
⚠ Known use in ransomware campaigns. Added to KEV 2022-02-15. US federal agencies must patch by 2022-08-15.
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionRequired
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)94%
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Official patch: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8174 ↗
Additional information
- NVD record
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8174Patch
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8174Patch
- http://www.securityfocus.com/bid/103998Advisory
- http://www.securityfocus.com/bid/103998Advisory
- https://blog.0patch.com/2018/05/a-single-instruction-micropatch-for.htmlAdvisory
- https://www.exploit-db.com/exploits/44741/Advisory
- https://blog.0patch.com/2018/05/a-single-instruction-micropatch-for.htmlAdvisory
- https://www.exploit-db.com/exploits/44741/Advisory