CVE-2025-43526
CRITICALCVSS 9.8/10EPSS 0.51%
Last modified
CVE-2025-43526 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. This issue was addressed with improved URL validation. This issue is fixed in Safari 26.2, macOS Tahoe 26.2. EPSS estimates a 0.51% chance of exploitation in the next 30 days.
Description
This issue was addressed with improved URL validation. This issue is fixed in Safari 26.2, macOS Tahoe 26.2. On a Mac with Lockdown Mode enabled, web content opened via a file URL may be able to use Web APIs that should be restricted.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Safari | < 26.2 |
| Apple | Macos | < 26.2 |
References
- https://support.apple.com/en-us/125886Release Notes, Vendor Advisory
- https://support.apple.com/en-us/125892Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2025-43526?
This issue was addressed with improved URL validation. This issue is fixed in Safari 26.2, macOS Tahoe 26.2. On a Mac with Lockdown Mode enabled, web content opened via a file URL may be able to use Web APIs that should be restricted.
How severe is CVE-2025-43526?
CVE-2025-43526 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.
How do I fix CVE-2025-43526?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2025-43526?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST