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Vulnerability record · CVE-2026-86870 · published 14 September 2026

CVE-2026-86870: Apple ipados heap-based buffer overflow vulnerability

Apple · Ipados

A heap buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27, watchOS 27. Processing a maliciously crafted file may lead to unexpected app termination.

6.5 CVSS 3.1 Medium EPSS 0.45% · top 63.3% CWE-122 · Heap-based buffer overflow
6.5CVSS 3.1 base score
0.45%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
5References
18 Sep 2026Last modified by NVD

Description

A heap buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27, watchOS 27. Processing a maliciously crafted file may lead to unexpected app termination.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.apple.com/en-us/149034 Vendor Advisory
https://support.apple.com/en-us/149035 Vendor Advisory
https://support.apple.com/en-us/149037 Vendor Advisory
https://support.apple.com/en-us/149038 Vendor Advisory
https://support.apple.com/en-us/149041 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-86870), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.