What is CVE-2026-86886?

CVE-2026-86886 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Path Traversal. CVSS score: 5.5/10. Published 2026-09-14.

How severe is CVE-2026-86886?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Path Traversal in Apple iOS And Ipados

CVE-2026-86886

A path traversal issue was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, watchOS 27. An app may be able to modify protected system files.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2026-09-14 · last modified 2026-09-18.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.3th percentile), scored 2026-10-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.3% 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-22 — Path Traversal

References

support.apple.com/en-us/149034 (Vendor Advisory)
support.apple.com/en-us/149037 (Vendor Advisory)
support.apple.com/en-us/149041 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-86886?: CVE-2026-86886 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Path Traversal. CVSS score: 5.5/10. Published 2026-09-14.
How severe is CVE-2026-86886?: Medium severity. CVSS v3 base score is 5.5 out of 10.