Out-of-bounds Read in Apple Iphone OS

CVE-2018-4248

An out-of-bounds read was addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, macOS High Sierra 10.13.6, tvOS 11.4.1, watchOS 4.3.2.

Vulnerability class: Buffer Overflow

EPSS: 0.024 (82.3th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-4248?
CVE-2018-4248 is a high-severity vulnerability in Apple Iphone OS, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2019-04-03.
How severe is CVE-2018-4248?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-4248 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.