# CVE-2026-86970: Apple iOS out-of-bounds read in font processing

Source: https://junglewise.ai/threats/cve-2026-86970-an-out-of-bounds-read-was-addressed-with-improved-input  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-26. Updated: 2026-10-26  
License: CC BY 4.0 with a link back

CVE-2026-86970 · Severity: info · Published 2026-10-26

A flaw in Apple iOS and related operating systems allows processing a maliciously crafted font file to expose sensitive data from device memory. An attacker who can trick a user into opening a malicious font could potentially access private information such as passwords, encryption keys, or other confidential data stored in memory.

Technologies: [Apple Ios](https://junglewise.ai/threats/technologies/apple-ios), [Apple iPadOS](https://junglewise.ai/threats/technologies/ipados), [Apple macOS Golden Gate](https://junglewise.ai/threats/technologies/macos-golden-gate), [Apple macOS Sequoia](https://junglewise.ai/threats/technologies/macos), [Apple Tvos](https://junglewise.ai/threats/technologies/tvos), [Apple Visionos](https://junglewise.ai/threats/technologies/visionos), [Apple watchOS](https://junglewise.ai/threats/technologies/watchos). Vendors: [Apple](https://junglewise.ai/threats/vendors/apple).

## Quick answers

**Is CVE-2026-86970 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-86970 being exploited in the wild.

**How severe is CVE-2026-86970?** Informational severity, published 26 October 2026.

**Which products and versions are affected?** Apple Ios 26.7.2 and earlier, 27.1 and earlier; Apple iPadOS 26.7.2 and earlier, 27.1 and earlier; Apple macOS Golden Gate 27.1 and earlier; Apple macOS Sequoia 15.8.1 and earlier; and 4 more.

**Is there a fix for CVE-2026-86970?** Yes: fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, tvOS 27.2, visionOS 27.2, watchOS 27.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-86970 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-86970?** Check whether you run Apple Ios, Apple iPadOS, Apple macOS Golden Gate or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, tvOS 27.2, visionOS 27.2, watchOS 27.2

## Technical details

An out-of-bounds read vulnerability exists in font processing code across Apple operating systems. The flaw is triggered when processing a specially crafted font file and allows an attacker to read beyond allocated memory boundaries, disclosing process memory content. The vulnerability requires user interaction (opening the malicious font) and affects iPhone 11 and later models.

## Affected products

- Apple iOS 26.7.2 and earlier, 27.1 and earlier
- Apple iPadOS 26.7.2 and earlier, 27.1 and earlier
- Apple macOS Golden Gate 27.1 and earlier
- Apple macOS Sequoia 15.8.1 and earlier
- Apple macOS Tahoe 26.7.1 and earlier
- Apple tvOS 27.1 and earlier
- Apple visionOS 27.1 and earlier
- Apple watchOS 27.1 and earlier

## Timeline

- 2026-10-26: disclosed
- 2026-10-26: patched

## References

- [https://support.apple.com/en-us/149227](https://support.apple.com/en-us/149227)
- [https://support.apple.com/en-us/149230](https://support.apple.com/en-us/149230)

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