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CVE-2025-43300Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability
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.
10.0 CRITICALEPSS 65.15%⚡ Known Exploited (CISA KEV)NVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 10.0 | CRITICAL | 3.1CISA-ADP | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
CISA required action
⚡ Known exploited · remediation due Sep 11, 2025
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Details
- CVE ID
- CVE-2025-43300
- Status
- Analyzed
- Assigner (CNA)
- apple
- Published
- Aug 21, 2025
- Last modified
- 2026-06-17 09:23 UTC
- Weaknesses
Affected Products
As published by the CNA in the CVE record.
AppleiOS and iPadOS3 version ranges
- before 15.8.5
- before 16.7.12
- before 18.6.2
AppleiPadOS1 version range
- before 17.7.10
ApplemacOS3 version ranges
- before 13.7.8
- before 14.7.8
- before 15.6.1
References
- support.apple.com https://support.apple.com/en-us/124925
- support.apple.com https://support.apple.com/en-us/124926
- support.apple.com https://support.apple.com/en-us/124927
- support.apple.com https://support.apple.com/en-us/124928
- support.apple.com https://support.apple.com/en-us/124929
- support.apple.com https://support.apple.com/en-us/125141
- support.apple.com https://support.apple.com/en-us/125142
- seclists.org http://seclists.org/fulldisclosure/2025/Sep/10
- seclists.org http://seclists.org/fulldisclosure/2025/Sep/14
- seclists.org http://seclists.org/fulldisclosure/2025/Sep/52
- github.com https://github.com/b1n4r1b01/n-days/blob/main/CVE-2025-43300.md
- github.com https://github.com/cisagov/vulnrichment/issues/201
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43300