# CVE-2026-86971: Apple iOS Accelerate Framework out-of-bounds write

Source: https://junglewise.ai/threats/cve-2026-86971-an-out-of-bounds-write-issue-was-addressed-with-improved-bounds  
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-2026-86971 · Severity: info · Published 2026-10-26

Apple's Accelerate Framework, used for image processing in iOS and related operating systems, contains an out-of-bounds write vulnerability that can be triggered by processing a maliciously crafted image. An attacker who tricks a user into opening a specially crafted image could cause an app to crash unexpectedly, disrupting the user's work. The vulnerability affects iPhone, iPad, Mac, and Vision Pro devices.

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 Visionos](https://junglewise.ai/threats/technologies/visionos). Vendors: [Apple](https://junglewise.ai/threats/vendors/apple).

## Quick answers

**Is CVE-2026-86971 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-86971 being exploited in the wild.

**How severe is CVE-2026-86971?** Informational severity, published 26 October 2026.

**Which products and versions are affected?** Apple Ios before 26.7.2, before 27.2; Apple iPadOS before 26.7.2, before 27.2; Apple macOS Golden Gate before 27.2; Apple macOS Sequoia before 15.8.2; and 2 more.

**Is there a fix for CVE-2026-86971?** Yes: fixed in iOS 26.7.2, iPadOS 26.7.2, iOS 27.2, iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, visionOS 27.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-86971 attacked?** It is attacked over the network or with local access, in an operating system.

**Am I affected by CVE-2026-86971?** 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, iPadOS 26.7.2, iOS 27.2, iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, visionOS 27.2

## Technical details

An out-of-bounds write issue in the Accelerate Framework allows writing beyond allocated memory bounds when processing maliciously crafted images. The vulnerability is triggered via network or user interaction (opening a malicious image file) with no authentication required. Exploitation results in unexpected app termination (denial of service). The fix addresses this with improved bounds checking.

## Affected products

- Apple iOS before 26.7.2, before 27.2
- Apple iPadOS before 26.7.2, before 27.2
- Apple macOS Sequoia before 15.8.2
- Apple macOS Golden Gate before 27.2
- Apple macOS Tahoe before 26.7.2
- Apple visionOS before 27.2

## Timeline

- 2026-10-26: disclosed

## 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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