How severe is CVE-2014-4077?

CVE-2014-4077 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2014-4077 being actively exploited?

Yes. CVE-2014-4077 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-05-25, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2014-4077?

CVE-2014-4077 primarily affects Microsoft Office 2007 Ime. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-4077?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2014-4077 have an EU (EUVD) identifier?

Yes. CVE-2014-4077 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2014-4008. It is also flagged as exploited in the EUVD (since 2022-05-25).

When was CVE-2014-4077 published?

CVE-2014-4077 was published on 2014-11-11 and last updated on 2026-06-17.

CVE-2014-4077

CVE-2014-4077 is a high-severity vulnerability in Microsoft Office 2007 Ime with a CVSS 3.x base score of 7.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-05-25).

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 9.3
EPSS exploit prediction: 48% (99th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-05-25)
EU (EUVD) id: EUVD-2014-4008
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-05-25)
Affected product: Microsoft Office 2007 Ime
Published: 2014-11-11
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2014-4077?: 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.
How severe is CVE-2014-4077?: CVE-2014-4077 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2014-4077 being actively exploited?: Yes. CVE-2014-4077 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-05-25, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2014-4077?: CVE-2014-4077 primarily affects Microsoft Office 2007 Ime. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-4077?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2014-4077 have an EU (EUVD) identifier?: Yes. CVE-2014-4077 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2014-4008. It is also flagged as exploited in the EUVD (since 2022-05-25).
When was CVE-2014-4077 published?: CVE-2014-4077 was published on 2014-11-11 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:microsoft:office_2007_ime:sp3:*:*:ja:*:*:*:*
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*

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