What is CVE-2016-1730?

CVE-2016-1730 is a medium-severity vulnerability in Apple Iphone OS, classified under CWE-19. CVSS score: 5.4/10. Published 2016-02-01.

How severe is CVE-2016-1730?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Information disclosure in Apple Iphone OS

CVE-2016-1730

WebSheet in Apple iOS before 9.2.1 allows remote attackers to read or write to cookies by operating a crafted captive portal.

Published 2016-02-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.013 (68.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Apple Iphone OS

Weakness classification (CWE)

References

www.securitytracker.com/id/1034737 (vdb-entry)
lists.apple.com/archives/security-announce/2016/Jan/msg00002.html (vendor-advisory, Vendor Advisory)
support.apple.com/HT205732 (Vendor Advisory)

Frequently asked questions

What is CVE-2016-1730?: CVE-2016-1730 is a medium-severity vulnerability in Apple Iphone OS, classified under CWE-19. CVSS score: 5.4/10. Published 2016-02-01.
How severe is CVE-2016-1730?: Medium severity. CVSS v3 base score is 5.4 out of 10.