What is CVE-2016-4850?

CVE-2016-4850 is a high-severity vulnerability in Linecorp Line, classified under Improper Access Control. CVSS score: 8.1/10. Published 2017-04-20.

How severe is CVE-2016-4850?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Linecorp Line

CVE-2016-4850

LINE for Windows before 4.8.3 allows man-in-the-middle attackers to execute arbitrary code.

Published 2017-04-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.022 (81.8th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Linecorp Line

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

linecorp.com/ja/security/article/65 (Vendor Advisory)
jvndb.jvn.jp/en/contents/2016/JVNDB-2016-000153.html (VDB Entry, Third Party Advisory, third-party-advisory)
jvn.jp/en/jp/JVN05924524/index.html (VDB Entry, Third Party Advisory, third-party-advisory)
www.securityfocus.com/bid/92644 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2016-4850?: CVE-2016-4850 is a high-severity vulnerability in Linecorp Line, classified under Improper Access Control. CVSS score: 8.1/10. Published 2017-04-20.
How severe is CVE-2016-4850?: High severity. CVSS v3 base score is 8.1 out of 10.