CVE-2016-1788

Messages in Apple iOS before 9.3, OS X before 10.11.4, and watchOS before 2.2 does not properly...

5.9 Medium

Messages in Apple iOS before 9.3, OS X before 10.11.4, and watchOS before 2.2 does not properly implement a cryptographic protection mechanism, which allows remote attackers to read message attachments via vectors related to duplicate messages.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

1.97%Up 0.6 points since Feb 4, 2022

What each source reports

NVD Score used 5.9

Record: CVE-2016-1788
CVSS 3.0: 5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0: 2.6 LowAV:N/AC:H/Au:N/C:P/I:N/A:N
Weakness: CWE-310
Updated: 2026-11-02

CVE List No score

Record: CVE-2016-1788
Updated: 2026-11-02

EUVDEUVD-2016-2883 No score

Record: EUVD-2016-2883
Updated: 2026-11-03

GitHub AdvisoriesGHSA-33c7-37w4-x2xm 5.9

Messages in Apple iOS before 9.3, OS X before 10.11.4, and watchOS before 2.2 does not properly...

Record: GHSA-33c7-37w4-x2xm
CVSS 3.0: 5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-1788 is a medium vulnerability (CVSS 5.9) in Apple Watchos, published March 24, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.97%, the 80th percentile. No source names a fixed version.