CVE-2018-0840 EXPLOIT
7.5
HIGH · CVSS 3.0 · EPSS 53.1% (pctl 99)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.5 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 53.07% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2018-02-15 |
| Last modified | 2026-06-17 |
Affected (9)
| Vendor | Product |
|---|---|
| microsoft | edge |
| microsoft | internet explorer |
| microsoft | windows 10 |
| microsoft | windows 7 |
| microsoft | windows 8.1 |
| microsoft | windows rt 8.1 |
| microsoft | windows server 2008 |
| microsoft | windows server 2012 |
| microsoft | windows server 2016 |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft Edge Chakra JIT - ImplicitCallFlags Checks Bypass | 2018-02-15 |
References
- http://www.securityfocus.com/bid/102886
- http://www.securitytracker.com/id/1040369
- http://www.securitytracker.com/id/1040372
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0840
- https://www.exploit-db.com/exploits/44077/
- http://www.securityfocus.com/bid/102886
- http://www.securitytracker.com/id/1040369
- http://www.securitytracker.com/id/1040372
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0840
- https://www.exploit-db.com/exploits/44077/
→ the Explorer · watch your stack · NVD