What is CVE-2018-16189?

CVE-2018-16189 is a high-severity vulnerability in Micco Self-Extracting Archives Created By Unlha32.dll, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2019-02-13.

How severe is CVE-2018-16189?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Micco Self-Extracting Archives Created By Unlha32.dll

CVE-2018-16189

Untrusted search path vulnerability in Self-Extracting Archives created by UNLHA32.DLL prior to Ver 3.00 allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.

Published 2019-02-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (59.7th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Micco Self-Extracting Archives Created By Unlha32.dll — versions prior to Ver 3.00
Micco Unlha32.dll
Microsoft Windows

Weakness classification (CWE)

CWE-426 — Untrusted Search Path

References

jvn.jp/en/jp/JVN52168232/index.html (Third Party Advisory, third-party-advisory)
micco.mars.jp/vul/2017/mhsvi20170515_01.htm (Vendor Advisory)

Frequently asked questions

What is CVE-2018-16189?: CVE-2018-16189 is a high-severity vulnerability in Micco Self-Extracting Archives Created By Unlha32.dll, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2019-02-13.
How severe is CVE-2018-16189?: High severity. CVSS v3 base score is 7.8 out of 10.