CVE-2025-43300
Last modified
CVE-2025-43300 is a critical-severity vulnerability rated 10/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 19.97% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 15.8.5 |
| Apple | Ipados | >= 16.0, < 16.7.12 |
| Apple | Ipados | >= 17.0, < 17.7.10 |
| Apple | Ipados | >= 18.0, < 18.6.2 |
| Apple | Iphone Os | < 15.8.5 |
| Apple | Iphone Os | >= 16.0, < 16.7.12 |
| Apple | Iphone Os | >= 17.0, < 18.6.2 |
| Apple | Macos | >= 13.0, < 13.7.8 |
| Apple | Macos | >= 14.0, < 14.7.8 |
| Apple | Macos | >= 15.0, < 15.6.1 |
References
- https://support.apple.com/en-us/124925Release Notes, Vendor Advisory
- https://support.apple.com/en-us/124926Release Notes, Vendor Advisory
- https://support.apple.com/en-us/124927Release Notes, Vendor Advisory
- https://support.apple.com/en-us/124928Release Notes, Vendor Advisory
- https://support.apple.com/en-us/124929Release Notes, Vendor Advisory
- https://support.apple.com/en-us/125141Release Notes, Vendor Advisory
- https://support.apple.com/en-us/125142Release Notes, Vendor Advisory
- http://seclists.org/fulldisclosure/2025/Sep/10Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2025/Sep/14Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2025/Sep/52Mailing List, Third Party Advisory
- https://github.com/b1n4r1b01/n-days/blob/main/CVE-2025-43300.mdExploit, Third Party Advisory
- https://github.com/cisagov/vulnrichment/issues/201Issue Tracking
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43300US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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