CVE-2025-43494Improper Input Validation in Apple IOS AND Ipados

Severity
7.5HIGHNVD
EPSS
0.1%
top 65.27%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedDec 12

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages9 packages

CVEListV5apple/macos< 14.8.2+2
NVDapple/macos14.014.8.2+2
NVDapple/ipados< 18.7.2+1
CVEListV5apple/ios_and_ipados< 18.7.2+1
CVEListV5apple/watchos< 26.1

🔴Vulnerability Details

2
GHSA
GHSA-4444-xfvc-v5mv: A mail header parsing issue was addressed with improved checks2025-12-12
CVEList
CVE-2025-43494: A mail header parsing issue was addressed with improved checks2025-12-12

📋Vendor Advisories

7
Apple
CVE-2025-43494: iOS 18.7.2 and iPadOS 18.7.22025-11-05
Apple
CVE-2025-43494: iOS 26.1 and iPadOS 26.12025-11-03
Apple
CVE-2025-43494: watchOS 26.12025-11-03
Apple
CVE-2025-43494: macOS Sonoma 14.8.22025-11-03
Apple
CVE-2025-43494: macOS Tahoe 26.12025-11-03

🕵️Threat Intelligence

1
Wiz
CVE-2025-43494 Impact, Exploitability, and Mitigation Steps | Wiz
CVE-2025-43494 — Improper Input Validation in Apple | cvebase