🛡️ CVE-2025-43494
🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-20 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A mail header parsing issue was addressed with improved checks. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. An attacker may be able to cause a persistent denial-of-service.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-20
Public Exploit ✅ No
Source NVD
Published 2025-12-12
Updated 2026-06-02
Modified 2026-04-02
Fix URL N/A

Affected Packages

Software From version Fixed in
ipados — —
iphone-os — —
macos — —
visionos — 26.1
watchos — 26.1

References

Release Notes, Vendor Advisory https://support.apple.com/en-us/125632
Release Notes, Vendor Advisory https://support.apple.com/en-us/125633
Release Notes, Vendor Advisory https://support.apple.com/en-us/125634
Release Notes, Vendor Advisory https://support.apple.com/en-us/125635
Release Notes, Vendor Advisory https://support.apple.com/en-us/125636
Release Notes, Vendor Advisory https://support.apple.com/en-us/125638
Release Notes, Vendor Advisory https://support.apple.com/en-us/125639

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