Vulnerability details
CVE-2025-43300
Actively exploited
Apple iOS and iPadOSApple iPadOSApple macOS
CVSS 3.1
10.0Critical
Remedy
Required action (CISA): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. (due: 2025-09-11)
Versions not listed as affected in the CVE record:
- iOS and iPadOS — version 15.8.5 and later
- iOS and iPadOS — version 16.7.12 and later
- iOS and iPadOS — version 18.6.2 and later
- iPadOS — version 17.7.10 and later
- macOS — version 13.7.8 and later
- macOS — version 14.7.8 and later
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 10.0Critical | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Apple | iOS and iPadOS | v < 15.8.5 | CVEProject cvelistV5 (CNA) |
| Apple | iOS and iPadOS | v < 16.7.12 | CVEProject cvelistV5 (CNA) |
| Apple | iOS and iPadOS | v < 18.6.2 | CVEProject cvelistV5 (CNA) |
| Apple | iPadOS | v < 17.7.10 | CVEProject cvelistV5 (CNA) |
| Apple | macOS | v < 13.7.8 | CVEProject cvelistV5 (CNA) |
| Apple | macOS | v < 14.7.8 | CVEProject cvelistV5 (CNA) |
| Apple | macOS | v < 15.6.1 | CVEProject cvelistV5 (CNA) |
References and advisories
13- 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
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43300 government-resource
- https://github.com/cisagov/vulnrichment/issues/201 issue-tracking
- https://github.com/b1n4r1b01/n-days/blob/main/CVE-2025-43300.md
- http://seclists.org/fulldisclosure/2025/Sep/52
- http://seclists.org/fulldisclosure/2025/Sep/14
- http://seclists.org/fulldisclosure/2025/Sep/10
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Details
- Published
- 2025-08-21
- Last updated
- 2026-04-02
- State
- Published
- Assigner (CNA)
- apple
- Kolun priority
- 90 · Critical
CISA KEV catalog
- Date added
- 2025-08-21
- Due date
- 2025-09-11
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
63.17%
Probability of exploitation in 30 days
99.2%
Percentile (among all CVEs)
- 2026-11-1163.17%
- 2026-11-0365.15%
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-787Out-of-bounds Write