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CVE-2018-16189

23
FAUCET Score

CVE-2018-16189 is an untrusted search path vulnerability in Self-Extracting Archives created by UNLHA32.DLL versions prior to 3.00, affecting products like micco unlha32.dll and Microsoft Windows. This high-severity vulnerability (CVSS 7.8) allows an attacker to gain privileges by tricking a user into executing a malicious Trojan horse DLL placed in an unspecified directory. While the potential impact is significant, leading to high confidentiality, integrity, and availability compromise, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.00CPE matchmatch criteria
cpe:2.3:a:micco:unlha32.dll:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.94%
Probability of exploitation in next 30 days
EPSS Percentile
57.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0094 is in the 54th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / en/jp/JVN52168232/index.html
Third Party Advisory
micco.mars.jp / vul/2017/mhsvi20170515_01.htm
Vendor Advisory