Exploited vulnerability · CISA KEV

Is CVE-2014-4077 exploited? Yes: in CISA KEV since 25 May 2022

Gociux · Microsoft Input Method Editor (IME) Japanese · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2014-4077, Microsoft IME Japanese Privilege Escalation Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 25 May 2022, 2752 days after it was published. It affects Microsoft Input Method Editor (IME) Japanese. If you run it, CISA's required action is: Apply updates per vendor instructions.

What it is

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.

What to do

1. Check whether you run it. Look for Input Method Editor (IME) Japanese in your asset inventory, including appliances and cloud images. Stack check lists every exploited Microsoft CVE at once.
2. Apply the fix. Apply updates per vendor instructions.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 11 Nov 2014.
4. Get told next time. Email alerts when CISA adds a CVE for Microsoft.

References

• nvd.nist.gov/vuln/detail/CVE-2014-4077

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in May 2022 · Microsoft scorecard · act-now radar.