Is CVE-2026-86903 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-86903 being exploited in the wild.

How severe is CVE-2026-86903?

Medium severity, with a CVSS score of 5.5, published 14 September 2026.

Which products and versions are affected?

Apple iPadOS before 27; Apple macOS before Golden Gate 27; Apple Tvos before 27; Apple Visionos before 27; and 1 more.

Is there a fix for CVE-2026-86903?

A patch was published on 2026-09-14: Fixed in iOS 27, iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, and watchOS 27 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-86903 attacked?

It is attacked with local access, in an operating system.

Am I affected by CVE-2026-86903?

Check whether you run Apple iPadOS, Apple Iphone Os, Apple macOS 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.

CVE-2026-86903: Apple iOS out-of-bounds read in kernel memory

CVE-2026-86903 · Severity: medium · CVSS 5.5 · Published 2026-09-14

iOS, iPadOS, and related Apple operating systems contain a vulnerability that allows malicious apps or crafted content to read sensitive kernel memory, which is the lowest-level operating system code that manages hardware and system security. An attacker exploiting this flaw could disclose confidential system information or secrets used by the operating system, potentially enabling further attacks on device security.

Technologies: Apple iPadOS, Apple Iphone Os, Apple macOS, Apple Tvos, Apple Visionos, Apple watchOS. Vendors: Apple.

Quick answers

Is CVE-2026-86903 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-86903 being exploited in the wild.
How severe is CVE-2026-86903?: Medium severity, with a CVSS score of 5.5, published 14 September 2026.
Which products and versions are affected?: Apple iPadOS before 27; Apple macOS before Golden Gate 27; Apple Tvos before 27; Apple Visionos before 27; and 1 more.
Is there a fix for CVE-2026-86903?: A patch was published on 2026-09-14: Fixed in iOS 27, iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, and watchOS 27 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-86903 attacked?: It is attacked with local access, in an operating system.
Am I affected by CVE-2026-86903?: Check whether you run Apple iPadOS, Apple Iphone Os, Apple macOS 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 read vulnerability exists in Apple's kernel that was addressed through improved input validation. The vulnerability allows an app to read memory beyond the bounds of an allocated buffer, potentially exposing kernel memory contents. The attack requires an app to be installed and executed on the device or for the user to process maliciously crafted input. The impact is information disclosure—an attacker can leak kernel memory which may contain sensitive system state or credentials. The issue is fixed in iOS 27, iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, and watchOS 27 released on September 14, 2026.

Affected products

Apple iOS before 27
Apple iPadOS before 27
Apple macOS before Golden Gate 27
Apple tvOS before 27
Apple visionOS before 27
Apple watchOS before 27

Timeline

2026-09-14: disclosed
2026-09-14: patched: Fixed in iOS 27, iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, and watchOS 27

References

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