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CVE-2026-86919

8.8 · HIGH

A stack overflow was addressed with improved input validation.

Published Oct 20, 2026CWE-121EPSS 0.39%

Overview

CVE-2026-86919 is a high-severity vulnerability. It was published on October 20, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

A stack overflow was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An attacker with a paired Bluetooth device may be able to execute arbitrary code.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsupport.apple.com/en-us/149034Refsupport.apple.com/en-us/149035Refsupport.apple.com/en-us/149038Refsupport.apple.com/en-us/149041Refsupport.apple.com/en-us/149042Refsupport.apple.com/en-us/149043

How CyberStrike helps

Frequently asked questions

What is CVE-2026-86919?

CVE-2026-86919 is a high-severity vulnerability. It was published on October 20, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-86919?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-86919?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-86919?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-86919 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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