Overview
Microsoft Input Method Editor (IME) Japanese is a keyboard with Japanese characters that can be enabled on Windows systems as it is included by default (with the default set as disabled). IME Japanese contains an unspecified vulnerability when IMJPDCT.EXE (IME for Japanese) is installed which allows attackers to bypass a sandbox and perform privilege escalation.
https://nvd.nist.gov/vuln/detail/CVE-2014-4077
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2014-4077 |
| Vendor / Product | Microsoft — Input Method Editor (IME) Japanese |
| NVD Published | 2014-11-11 |
| NVD Last Modified | 2025-10-22 |
| CVSS 3.1 Score | 7.8 |
| CVSS 3.1 Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Severity | HIGH |
| CISA KEV Added | 2022-05-25 |
| CISA KEV Deadline | 2022-06-15 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2022-06-15.
Apply updates per vendor instructions.
Timeline
| Date | Event |
|---|---|
| 2022-05-25 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2022-06-15 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2014-4077 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |