CVE-2025-43300An out-of-bounds write issue was addressed with improved bounds checking.
Updated under an hour ago ()
Does this affect you?
It affects Apple iOS and iPadOS and 3 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Aug 21, 2025; federal agencies had to remediate by Sep 11, 2025. Treat that date as your deadline.
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Free account, 1 product
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.
- CVSS
- 10.0 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Added to CISA KEV Aug 21, 2025; federal remediation due Sep 11, 2025Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 32.50% (percentile 98)
- Assigned by
- apple
- NVD analysis
- Analyzed
- Record last updated
- Apr 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apple iOS and iPadOS apple:ios_and_ipados (from the name) | before 15.8.5; before 16.7.12; before 18.6.2 | CNA record |
Apple iPadOS apple:ipados (from the name) | before 17.7.10 | CNA record |
Apple macOS apple:macos (from the name) | before 13.7.8; before 14.7.8; before 15.6.1 | CNA record |
apple ipados 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 | NVD |
apple iphone_os apple:iphone_os | before 15.8.5; from 16.0 before 16.7.12; from 17.0 before 18.6.2 | NVD |
apple macos apple:macos | from 13.0 before 13.7.8; from 14.0 before 14.7.8; from 15.0 before 15.6.1 | NVD |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.