What is CVE-2019-5911?

CVE-2019-5911 is a high-severity vulnerability in Micco The Installer Of Unlha32.dll, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2019-02-13.

How severe is CVE-2019-5911?

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

Vulnerability in Micco The Installer Of Unlha32.dll

CVE-2019-5911

Untrusted search path vulnerability in the installer of UNLHA32.DLL (UNLHA32.DLL for Win32 Ver 2.67.1.2 and earlier) 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: 0.008 (56.1th percentile), scored 2026-10-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Micco The Installer Of Unlha32.dll — versions (UNLHA32.DLL for Win32 Ver 2.67.1.2 and earlier)
Micco Unlha32.dll
Microsoft Windows

Weakness classification (CWE)

CWE-426 — Untrusted Search Path

References

micco.mars.jp/vul/2017/mhsvi20170515_01.htm (Patch, Vendor Advisory)
jvn.jp/en/jp/JVN83826673/index.html (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2019-5911?: CVE-2019-5911 is a high-severity vulnerability in Micco The Installer Of Unlha32.dll, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2019-02-13.
How severe is CVE-2019-5911?: High severity. CVSS v3 base score is 7.8 out of 10.