CVE-2018-8126 json
A security feature bypass vulnerability exists when Internet Explorer fails to validate User Mode Code Integrity (UMCI) policies, aka "Inte…
published 2018-05-09 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19802
- cvss
- 8.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.5%
- EPSS 5.5% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
A security feature bypass vulnerability exists when Internet Explorer fails to validate User Mode Code Integrity (UMCI) policies, aka "Internet Explorer Security Feature Bypass Vulnerability." This affects Internet Explorer 11.
Patch / fix
Exploit prediction
5.50% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- Microsoft Internet Explorer 11
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2018-8126
patch, vendor-advisory
-
securityfocus.com
/bid/103997
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1040846
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-8126
- NVD CVE-2018-8126
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.