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10.0 Critical Exploited

CVE-2025-43300 Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability

Active exploitation observed

· CISA KEV catalogue
Required action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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 15.8.5 and iPadOS 15.8.5, iOS 16.7.12 and iPadOS 16.7.12, iOS 18.6.2 and iPadOS 18.6.2, iPadOS 17.7.10, macOS Sequoia 15.6.1, macOS Sonoma 14.7.8, macOS Ventura 13.7.8. Processing a malicious image file may result in memory corruption. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals.

Affected products and versions

Product Affected versions Fixed in
iOS and iPadOS 18.6 earliest → < 18.6.2 18.6.2
iOS and iPadOS 16.7 earliest → < 16.7.12 16.7.12
iOS and iPadOS 15.8 earliest → < 15.8.5 15.8.5
iPadOS 17.7 earliest → < 17.7.10 17.7.10
macOS 15.6 earliest → < 15.6.1 15.6.1
macOS 14.7 earliest → < 14.7.8 14.7.8
macOS 13.7 earliest → < 13.7.8 13.7.8

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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