What is CVE-2025-43503?

CVE-2025-43503 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Authentication Bypass by Spoofing. CVSS score: 4.3/10. Published 2025-11-04.

How severe is CVE-2025-43503?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Apple iOS And Ipados

CVE-2025-43503

An inconsistent user interface issue was addressed with improved state management. This issue is fixed in Safari 26.1, iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. Visiting a malicious website may lead to user interface spoofing.

Published 2025-11-04 · last modified 2026-09-26.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Apple iOS And Ipados — versions 0
Apple Ipados
Apple Iphone OS
Apple macOS — versions 0
Apple Safari — versions 0
Apple Visionos — versions 0
Apple watchOS — versions 0

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

Frequently asked questions

What is CVE-2025-43503?: CVE-2025-43503 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Authentication Bypass by Spoofing. CVSS score: 4.3/10. Published 2025-11-04.
How severe is CVE-2025-43503?: Medium severity. CVSS v3 base score is 4.3 out of 10.