CVE-2025-31266

low-risk

Published 2025-11-21

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.

Do I need to act?

0.03% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.3/10 Medium

NETWORK / LOW complexity

Affected Products (2)

Safari

Macos

Affected Vendors

Apple

References (2)

Release Notes https://support.apple.com/en-us/122716

Release Notes https://support.apple.com/en-us/122719

/ 100

low-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 7/34 · Low