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

criticalknown exploitedCVE-2014-4077
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Microsoftproduct: Input Method Editor (IME) JapanesePrivilege escalation
What
The vulnerability allows attackers to bypass a sandbox and perform privilege escalation.
Who is affected
Users of Microsoft IME Japanese on Windows systems with the IMJPDCT.EXE installed are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Users should apply the latest security updates from Microsoft.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-05-25
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2014-4077

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2014-4077coverage & exploitation statusNVD · CVE.org

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