CVE DATABASE / CVE-2014-4077
CVE-2014-4077
Microsoft IME Japanese Privilege Escalation Vulnerability
Confirmed exploited in the wild. Added 2022-05-25.
Federal remediation due 2022-06-15.
Required action: Apply updates per vendor instructions.
Summary
Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, and Office 2007 SP3, when IMJPDCT.EXE (aka IME for Japanese) is installed, allow remote attackers to bypass a sandbox protection mechanism via a crafted PDF document, aka "Microsoft IME (Japanese) Elevation of Privilege Vulnerability," as exploited in the wild in 2014.
CVSS 3.1 breakdown
| Base score | 7.8 (HIGH) |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Attack vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Affected products
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References
- http://blogs.technet.com/b/srd/archive/2014/11/11/assessing-risk-for-the-november-2014-security-updates.aspx
- http://www.securitytracker.com/id/1031196
- http://www.securitytracker.com/id/1031197
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-078
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-4077
Data: NIST NVD + CISA KEV. NVD last modified 2026-04-22. Always verify against the vendor advisory before acting.