CVE-2025-31266: safari — Fix

Description

A spoofing issue was addressed with improved truncation when displaying the fully qualified domain name. This issue is fixed in Safari 18.5, macOS Sequoia 15.5. A website may be able to spoof the domain name in the title of a pop-up window.

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CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-451 CWE-451

Affected Products

Vendor	Product	Versions
apple	safari	< 18.5
apple	macos	< 15.5

References

Advisories & Patches

https://support.apple.com/en-us/122716 https://support.apple.com/en-us/122719

Frequently Asked Questions

What is CVE-2025-31266? +

A spoofing issue was addressed with improved truncation when displaying the fully qualified domain name. This issue is fixed in Safari 18.5, macOS Sequoia 15.5. A website may be able to spoof the domain name in the title of a pop-up window. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2025-31266? +

CVE-2025-31266 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-31266? +

CVE-2025-31266 affects products from apple, specifically: macos, safari. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-31266? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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