Improper input validation in Apple iOS And Ipados

CVE-2026-86963

A denial-of-service issue was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27. An attacker in a privileged network position may be able to cause a denial-of-service.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-86963?
CVE-2026-86963 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Improper Input Validation. CVSS score: 5.9/10. Published 2026-10-20.
How severe is CVE-2026-86963?
Medium severity. CVSS v3 base score is 5.9 out of 10.