9.3

CVE-2014-4077: Microsoft IME Japanese Privilege Escalation Vulnerability

CVSS: 9.3v2.0HighKEVAnalyzed
Published 11-11-2014Last modified 22-10-2025
Open JSON

Vulnerability summary

CVE-2014-4077 is a high (CVSS 9.3) vulnerability in Microsoft Input Method Editor (IME) Japanese. It is known to be exploited: CISA lists it, first on 25-05-2022. EPSS estimates a 54.58% chance of exploitation in the next 30 days, higher than 99% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
9.3/10
010
High · v2.0 (NVD)
EPSS score
54.58%
0%100%
Critical · 0.00 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-11-2014
    PublishedVulnerability first disclosed.
  2. 25-05-2022
    Added to CISA KEVMicrosoft IME Japanese Privilege Escalation Vulnerability
  3. 15-06-2022
    CISA remediation dueApply updates per vendor instructions.
  4. 22-10-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

54.58%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

0.00 pp

From 54.58% on 19-09-2026

19-09-202619-10-2026
EPSS score
54.58%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
25-05-2022
Federal due date
15-06-2022

CISA required action

Apply updates per vendor instructions. nvd.nist.gov/vuln/detail/CVE-2014-4077

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Microsoft5 products

1 vendor · 5 products

References

5 links