How severe is CVE-2014-4077?

CVE-2014-4077 has a CVSS 3.1 base score of 7.8 (HIGH). EPSS estimates a 54.6% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2014-4077: Microsoft IME Japanese Privilege Escalation

CISA Known Exploited Vulnerabilities

Microsoft IME Japanese Privilege Escalation Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-05-25

Remediation due

2022-06-15

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2014-4077

Description

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.

Severity

CVSS 3.1 · CISA7.8 HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Exploitation Context

as of October 13, 2026

All KEV statistics→

CISA added CVE-2014-4077 to the KEV catalog 2,752 days after its CVE record was published.
It is one of 390 Microsoft entries in the CISA KEV catalog, and one of 166 added in 2022.
Its current EPSS score (54.6%) is higher than that of 52% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
-	-	n/a

References

4 Links

Vendor advisories

MS14-078

Vulnerability databases

Other references

http://blogs.technet.com/b/srd/archive/2014/11/11/assessing-risk-for-the-november-2014-security-updates.aspx

Record Details

Published

2014-11-11

Last updated

2025-10-22

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.