CVE-2018-8174
Act now ● On CISA KEV — actively exploited used in ransomware
Actively exploited — on the CISA KEV list.
CVSS base
7.5
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
88.3%
99.8th percentile
CISA KEV
Listed
Added 2022-02-15 · patch by 2022-08-15
Weakness / dates
CWE-787
Published 2018-05-09 · modified 2026-08-13
CVSS breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | H | High |
| Privileges Required | N | None |
| User Interaction | R | Required |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2018-05-09 — Published (NVD)
- 2022-02-15 — Added to CISA KEV (actively exploited)
- 2022-08-15 — CISA patch-by deadline
- 2026-08-13 — Last modified (NVD)
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.
Affected
References
- http://www.securityfocus.com/bid/103998
- exploit https://blog.0patch.com/2018/05/a-single-instruction-micropatch-for.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8174
- exploit https://www.exploit-db.com/exploits/44741/
- http://www.securityfocus.com/bid/103998
- exploit https://blog.0patch.com/2018/05/a-single-instruction-micropatch-for.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8174
- exploit https://www.exploit-db.com/exploits/44741/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8174