CVE-2025-43300
Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2025-08-21. Federal due date: 2025-09-11.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Apple | Ipados | before 15.8.5 from 16.0 before 16.7.12 from 17.0 before 17.7.10 from 18.0 before 18.6.2 |
| Apple | Iphone Os | before 15.8.5 from 16.0 before 16.7.12 from 17.0 before 18.6.2 |
| Apple | Macos | from 13.0 before 13.7.8 from 14.0 before 14.7.8 from 15.0 before 15.6.1 |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- 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
- http://seclists.org/fulldisclosure/2025/Sep/10
- http://seclists.org/fulldisclosure/2025/Sep/14
- http://seclists.org/fulldisclosure/2025/Sep/52
- https://github.com/b1n4r1b01/n-days/blob/main/CVE-2025-43300.md
- https://github.com/cisagov/vulnrichment/issues/201
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43300