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8.8 High Exploited

CVE-2026-86950 Apple Multiple Products Out-of-Bounds Write Vulnerability

Active exploitation observed

· CISA KEV catalogue
Required action Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Ransomware campaigns Not observed so far
Weakness CWE-787

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.11 and iPadOS 18.7.11, iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1. Processing a maliciously crafted file may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 27.

Affected products and versions

Product Affected versions Fixed in
iOS and iPadOS 26.7 earliest → < 26.7.1 26.7.1
iOS and iPadOS 18.7 earliest → < 18.7.11 18.7.11
macOS 26.7 earliest → < 26.7.1 26.7.1
macOS 15.8 earliest → < 15.8.1 15.8.1

References

Timeline

  1. Published
  2. Added to the KEV catalogue
  3. Last modified

Other CVEs of iOS and iPadOS

The 2049 CVEs of iOS and iPadOS →
CVE-2026-86925 An authorization issue was addressed with improved state management 5.5 Medium CVE-2026-84627 A buffer overflow was addressed with improved bounds checking 7.8 High CVE-2026-86972 A buffer overflow was addressed with improved size validation 7.8 High CVE-2026-113912 An out-of-bounds access issue was addressed with improved bounds checking 7.1 High
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