# CVE-2025-43300

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.

- Page: https://www.vulneraibility.com/cve/CVE-2025-43300
- CVSS: 10.0
- Known exploited: yes, in CISA KEV since 2025-08-21; CISA due date 2025-09-11
- EPSS: 65.16%
- Unvetted proof-of-concept code on GitHub: 5 GitHub proofs of concept (first 2025-08-24)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2025-11-27)
- Weakness: CWE-787
- Published: 2025-08-21

## Affected versions

- Apple iOS and iPadOS: affected < 15.8.5; < 16.7.12; < 18.6.2
- Apple iPadOS: affected < 17.7.10
- Apple macOS: affected < 13.7.8; < 14.7.8; < 15.6.1

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://support.apple.com/en-us/124925
- [other] https://support.apple.com/en-us/124926
- [other] https://support.apple.com/en-us/124927
- [other] https://support.apple.com/en-us/124928
- [other] https://support.apple.com/en-us/124929
- [other] https://support.apple.com/en-us/125141
- [other] https://support.apple.com/en-us/125142
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43300
- [other] https://github.com/cisagov/vulnrichment/issues/201
- [other] https://github.com/b1n4r1b01/n-days/blob/main/CVE-2025-43300.md
- [other] http://seclists.org/fulldisclosure/2025/Sep/52
- [other] http://seclists.org/fulldisclosure/2025/Sep/14
- [other] http://seclists.org/fulldisclosure/2025/Sep/10

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.