Buffer overflow in Apple iOS And Ipados
CVE-2026-86953
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. An attacker in physical proximity may be able to cause a denial-of-service.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/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-2026-86953?
- CVE-2026-86953 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Write. CVSS score: 4.6/10. Published 2026-10-20.
- How severe is CVE-2026-86953?
- Medium severity. CVSS v3 base score is 4.6 out of 10.