CVE-2016-4740

low
Published 2016-09-18 · Modified 2026-05-06
CVSS v3
2.9
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v2
1.9
VIR risk
2.9

Description

Apple iOS before 10, when Handoff for Messages is used, does not ensure that a Messages signin has occurred before displaying messages, which might allow attackers to obtain sensitive information via unspecified vectors.

Predictions

Exploit likelihood
30%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: product-security@apple.com — https://support.apple.com/HT207143

vendor Authored 2026-05-27

Vendor advisory: product-security@apple.com — http://lists.apple.com/archives/security-announce/2016/Sep/msg00002.html

OS impact

OSVersionStatusFixed in
macos macosaffected

References

CWEs

CWE-200

Verify integrity in audit chain (admin only). AS-IS.