CVE-2016-1187
CWE-200Published: April 21, 2017· Updated: Jun 17, 2026
Official Description
Cybozu KUNAI for iPhone 2.0.3 through 3.1.5 and for Android 2.1.2 through 3.0.4 does not verify SSL certificates.
Technical Analysis
CVE-2016-1187 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.8.
The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.
From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (8)
Quick Facts
Related CVEs (CWE-200)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-1187 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts