What is CVE-2025-43431?

CVE-2025-43431 is a high-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2025-11-04.

How severe is CVE-2025-43431?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Apple iOS And Ipados

CVE-2025-43431

The issue was addressed with improved memory handling. 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, tvOS 26.1, visionOS 26.1, watchOS 26.1. Processing maliciously crafted web content may lead to memory corruption.

Vulnerability class: Buffer Overflow

EPSS: 0.008 (52.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Apple Ios And Ipados — versions 0
Apple Ipados
Apple Iphone_os
Apple Macos — versions 0
Apple Safari — versions 0
Apple Tvos — versions 0
Apple Visionos — versions 0
Apple Watchos — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-43431?: CVE-2025-43431 is a high-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2025-11-04.
How severe is CVE-2025-43431?: High severity. CVSS v3 base score is 8.8 out of 10.