Improper input validation in Apple iOS And Ipados
CVE-2025-43494
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (45.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
Affected products
- Apple iOS And Ipados — versions 0
- Apple Ipados — versions 26.0
- Apple Iphone OS — versions 26.0
- Apple macOS — versions 26.0, 0
- Apple Visionos — versions 0
- Apple watchOS — versions 0
Weakness classification (CWE)
References
- support.apple.com/en-us/125632 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125633 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125634 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125635 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125636 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125638 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/125639 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-43494?
- CVE-2025-43494 is a high-severity vulnerability in Apple iOS And Ipados, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2025-12-12.
- How severe is CVE-2025-43494?
- High severity. CVSS v3 base score is 7.5 out of 10.