CVE-2014-4077
Actively exploited. CVE-2014-4077 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-25) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching 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
- 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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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 99% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2014-4077: Microsoft IME Japanese Privilege Escalation Vulnerabilitycisa-kev · 2022-05-25
External references
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