CVE-2025-43300

Summary

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 Software

Weaknesses

• 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.

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: active
  • Automatable: yes
  • Technical Impact: total

Additional References

• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43300
• https://github.com/cisagov/vulnrichment/issues/201

CVE Program Container

Additional References

• https://github.com/b1n4r1b01/n-days/blob/main/CVE-2025-43300.md
• http://seclists.org/fulldisclosure/2025/Sep/52
• http://seclists.org/fulldisclosure/2025/Sep/14
• http://seclists.org/fulldisclosure/2025/Sep/10

References

• https://support.apple.com/en-us/124925
• https://support.apple.com/en-us/124926
• https://support.apple.com/en-us/124927
• https://support.apple.com/en-us/124928
• https://support.apple.com/en-us/124929
• https://support.apple.com/en-us/125141
• https://support.apple.com/en-us/125142

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