CVE-2024-40866

Name: CVE-2024-40866
Creator: NVD / NIST
Published: 2024-09-17T00:15:49.84+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2024-40866 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. The issue was addressed with improved UI. This issue is fixed in Safari 18, macOS Sequoia 15. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

The issue was addressed with improved UI. This issue is fixed in Safari 18, macOS Sequoia 15. Visiting a malicious website may lead to address bar spoofing.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.92%

55.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apple	Safari	< 18.0
Apple	Macos	< 15.0

References

https://support.apple.com/en-us/121238Release Notes, Vendor Advisory
https://support.apple.com/en-us/121241Release Notes, Vendor Advisory
http://seclists.org/fulldisclosure/2024/Sep/33
http://seclists.org/fulldisclosure/2024/Sep/37
https://lists.debian.org/debian-lts-announce/2024/11/msg00019.html

Timeline

Published: Sep 17, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-40866?

The issue was addressed with improved UI. This issue is fixed in Safari 18, macOS Sequoia 15. Visiting a malicious website may lead to address bar spoofing.

How severe is CVE-2024-40866?

CVE-2024-40866 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2024-40866?

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-2024-40866?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST