CVE-2019-5911: Untrusted search path vulnerability in the installer of UNLHA32.DLL (UNLHA32.DLL for Win32 Ver 2.67.1.2 and ea

Q: How do I fix CVE-2019-5911?

unlha32.dll: upgrade to newer than 2.67.1.2. Exact commands for each OS are on this page.

Q: Is CVE-2019-5911 being exploited?

CVE-2019-5911 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-5911 affect?

CVE-2019-5911 affects unlha32.dll. Severity is high (CVSS 7.8). 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.

This month

HIGH 7.8UPGRADE

CVE-2019-5911 is a high-severity flaw (CVSS 7.8) affecting unlha32.dll. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-426
Published	2019-02-13
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: micco

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-02-13 18:29 UTCPublished CVE record published
2026-06-17 02:38 UTCUpdated Record last modified

micco unlha32.dll UPGRADE

Affected: <= 2.67.1.2

Fixed in: newer than 2.67.1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy unlha32.dll || rpm -q unlha32.dll || unlha32.dll --version

2. UPGRADE to newer than 2.67.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade unlha32.dll

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade unlha32.dll

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-5911?

unlha32.dll: upgrade to newer than 2.67.1.2. Exact commands for each OS are on this page.

Is CVE-2019-5911 being exploited?

CVE-2019-5911 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-5911 affect?

CVE-2019-5911 affects unlha32.dll. Severity is high (CVSS 7.8). 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.

How urgent is CVE-2019-5911?

Priority 41/100. High severity

Related CVEs

CVE-2018-16190 HIGH 7.8 UPGRADE UPGRADE Untrusted search path vulnerability in UNARJ32.DLL for Win32, LHMelting for Win32, and LMLzh32.DLL (UNARJ32.DL
CVE-2018-16189 HIGH 7.8 UPGRADE Untrusted search path vulnerability in Self-Extracting Archives created by UNLHA32.DLL prior to Ver 3.00 allow

References

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