Buffer overflow in Apple iOS And Ipados

CVE-2026-65330

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Sequoia 15.8, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause unexpected system termination or corrupt kernel memory.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (37.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-65330: held from 0.002 to 0.005.

EPSS over last 30 days · oldest: 0.002 · newest: 0.005 · change: +0.002

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2026-65330?
CVE-2026-65330 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2026-08-17.
How severe is CVE-2026-65330?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2026-65330 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.