CVE-2026-43724

Description

The issue was addressed with improved input sanitization. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. An app may be able to cause unexpected system termination or write kernel memory.

CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0014

Probability of exploitation

0.04%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-20 Improper Input Validation

Affected Products

Vendor	Product	Versions
apple	ipados	< 26.5.2
apple	iphone_os	< 26.5.2
apple	macos	26.0 — 26.5.2

References

Advisories & Patches

https://support.apple.com/en-us/127594 https://support.apple.com/en-us/127595

Frequently Asked Questions

What is CVE-2026-43724? +

The issue was addressed with improved input sanitization. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. An app may be able to cause unexpected system termination or write kernel memory. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-43724? +

CVE-2026-43724 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0014, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-43724? +

CVE-2026-43724 affects products from apple, specifically: ipados, iphone_os, macos. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-43724? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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