# CVE-2026-86950: Apple CoreGraphics out-of-bounds write in file processing

Source: https://junglewise.ai/threats/cve-2026-86950-an-out-of-bounds-write-issue-was-addressed-with-improved-bounds  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-28. Updated: 2026-09-28  
License: CC BY 4.0 with a link back

CVE-2026-86950 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2026-09-28

CoreGraphics is a graphics rendering engine in Apple's operating systems. An out-of-bounds write vulnerability allows attackers to execute arbitrary code by processing maliciously crafted files. Apple has confirmed this vulnerability was exploited in targeted attacks against specific iOS users.

Technologies: [Apple Ios](https://junglewise.ai/threats/technologies/apple-ios), [Apple iPadOS](https://junglewise.ai/threats/technologies/ipados), [Apple macOS Sequoia](https://junglewise.ai/threats/technologies/macos), [Apple Multiple Products](https://junglewise.ai/threats/technologies/multiple-products). Vendors: [Apple](https://junglewise.ai/threats/vendors/apple).

## Quick answers

**Is CVE-2026-86950 exploited in the wild?** Yes. CVE-2026-86950 is known to be exploited in the wild, first recorded on 29 September 2026. Treat it as urgent.

**How severe is CVE-2026-86950?** Critical severity, with a CVSS score of 8.8, published 28 September 2026.

**Which products and versions are affected?** Apple Ios before 26.7.1; Apple iPadOS before 26.7.1; Apple macOS Sequoia before 15.8.1; Apple macOS Tahoe before 26.7.1.

**Is there a fix for CVE-2026-86950?** A patch was published on 2026-09-28: iOS 26.7.1, iPadOS 26.7.1, macOS Sequoia 15.8.1, and macOS Tahoe 26.7.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-86950 attacked?** It is attacked over the network or with local access, in an operating system.

**Am I affected by CVE-2026-86950?** Check whether you run Apple Ios, Apple iPadOS, Apple macOS Sequoia 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.

## Technical details

An out-of-bounds write vulnerability in CoreGraphics' file processing lacks proper bounds checking, allowing arbitrary code execution. The vulnerability requires user interaction (opening a malicious file) and affects iOS, iPadOS, and macOS systems. The issue is fixed in iOS 26.7.1, iPadOS 26.7.1, macOS Sequoia 15.8.1, and macOS Tahoe 26.7.1.

## Affected products

- Apple iOS before 26.7.1
- Apple iPadOS before 26.7.1
- Apple macOS Sequoia before 15.8.1
- Apple macOS Tahoe before 26.7.1

## Timeline

- 2026-09-28: disclosed: Security advisory published
- 2026-09-28: patched: iOS 26.7.1, iPadOS 26.7.1, macOS Sequoia 15.8.1, and macOS Tahoe 26.7.1 released
- 2026-09-28: exploited: Confirmed exploitation in extremely sophisticated attacks against specific targeted individuals on iOS before version 27

## References

- [https://support.apple.com/en-us/149226](https://support.apple.com/en-us/149226)
- [https://support.apple.com/en-us/149228](https://support.apple.com/en-us/149228)

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