CVE-2025-43529
HIGH CISA KEVCVSS v3
8.8
HIGH
EPSS Score
0.1%
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 26.2, Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2, tvOS 26.2. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 was also
CISA Known Exploited Vulnerability
- Date Added
- 12/15/2025
- Patch Due Date
- 1/5/2026
- Required Action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 12/17/2025
- Last Modified
- 12/18/2025
Frequently Asked Questions
What is CVE-2025-43529?
A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 26.2, Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2, tvOS 26.2. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 was also
Is CVE-2025-43529 actively exploited?
Yes. CVE-2025-43529 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 1/5/2026.
What is the CVSS score for CVE-2025-43529?
CVE-2025-43529 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string 3.1.
Is CVE-2025-43529 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.