What is CVE-2016-1156?

CVE-2016-1156 is a medium-severity vulnerability in Apple Mac OS X, classified under Improper Input Validation. CVSS score: 5.7/10. Published 2016-02-19.

How severe is CVE-2016-1156?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Improper input validation in Apple Mac OS X

CVE-2016-1156

LINE 4.3.0.724 and earlier on Windows and 4.3.1 and earlier on OS X allows remote authenticated users to cause a denial of service (application crash) via a crafted post that is mishandled when displaying a Timeline.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2016-02-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.011 (63.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

linecorp.com/ja/security/article/53 (Vendor Advisory)
jvndb.jvn.jp/jvndb/JVNDB-2016-000029 (Vendor Advisory, third-party-advisory)
jvn.jp/en/jp/JVN46044093/index.html (Vendor Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2016-1156?: CVE-2016-1156 is a medium-severity vulnerability in Apple Mac OS X, classified under Improper Input Validation. CVSS score: 5.7/10. Published 2016-02-19.
How severe is CVE-2016-1156?: Medium severity. CVSS v3 base score is 5.7 out of 10.