What is CVE-2026-84597?

CVE-2026-84597 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-09-14.

How severe is CVE-2026-84597?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Out-of-bounds Read in Apple iOS And Ipados

CVE-2026-84597

An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted font may result in the disclosure of process memory.

Vulnerability class: Buffer Overflow

Published 2026-09-14 · last modified 2026-09-16.

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:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (34.8th percentile), scored 2026-10-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

support.apple.com/en-us/149034 (Vendor Advisory)
support.apple.com/en-us/149035 (Vendor Advisory)
support.apple.com/en-us/149036 (Vendor Advisory)
support.apple.com/en-us/149037 (Vendor Advisory)
support.apple.com/en-us/149038 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-84597?: CVE-2026-84597 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-09-14.
How severe is CVE-2026-84597?: Medium severity. CVSS v3 base score is 6.5 out of 10.