What is CVE-2018-0609?

CVE-2018-0609 is a high-severity vulnerability in Linecorp Line, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2018-06-26.

How severe is CVE-2018-0609?

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

Vulnerability in Linecorp Line

CVE-2018-0609

Untrusted search path vulnerability in LINE for Windows versions before 5.8.0 allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.

Published 2018-06-26 · 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 (54.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.7% 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

Linecorp Line

Weakness classification (CWE)

CWE-426 — Untrusted Search Path

References

jvn.jp/en/jp/JVN92265618/index.html (Third Party Advisory, third-party-advisory)
linecorp.com/en/security/article/172 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2018-0609?: CVE-2018-0609 is a high-severity vulnerability in Linecorp Line, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2018-06-26.
How severe is CVE-2018-0609?: High severity. CVSS v3 base score is 7.8 out of 10.