What is CVE-2026-43688?

CVE-2026-43688 is a high-severity vulnerability in Apple iOS And Ipados, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 7.8/10. Published 2026-09-14.

How severe is CVE-2026-43688?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Apple iOS And Ipados

CVE-2026-43688

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27. Processing a maliciously crafted file may lead to unexpected app termination.

Published 2026-09-14 · last modified 2026-09-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (5.0th percentile), scored 2026-10-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000

Affected products

Weakness classification (CWE)

CWE-1021 — Improper Restriction of Rendered UI Layers or Frames (Clickjacking)

References

support.apple.com/en-us/149034 (Release Notes, Vendor Advisory)
support.apple.com/en-us/149035 (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2026-43688?: CVE-2026-43688 is a high-severity vulnerability in Apple iOS And Ipados, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 7.8/10. Published 2026-09-14.
How severe is CVE-2026-43688?: High severity. CVSS v3 base score is 7.8 out of 10.