Information disclosure in Apple Iphone OS
CVE-2018-4221
An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. The issue involves the "Security" component. It allows web sites to track users by leveraging the transmission of S/MIME client certificates.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.012 (68.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.securitytracker.com/id/1041027 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/104897 (VDB Entry, Third Party Advisory, vdb-entry)
- support.apple.com/HT208848 (Vendor Advisory)
- support.apple.com/HT208849 (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-4221?
- CVE-2018-4221 is a high-severity vulnerability in Apple Iphone OS, classified under Information Disclosure. CVSS score: 7.5/10. Published 2018-06-08.
- How severe is CVE-2018-4221?
- High severity. CVSS v3 base score is 7.5 out of 10.