CVE-2025-43255

Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7, macOS Ventura 13.7.7. An app may be able to cause unexpected system termination.

CVSS v3.1 Score

3.3

LOW

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

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
apple	macos	13.0 — 13.7.7
apple	macos	14.0 — 14.7.7
apple	macos	15.0 — 15.6

References

Advisories & Patches

https://support.apple.com/en-us/124149 https://support.apple.com/en-us/124150 https://support.apple.com/en-us/124151

Other References

http://seclists.org/fulldisclosure/2025/Jul/32 http://seclists.org/fulldisclosure/2025/Jul/33 http://seclists.org/fulldisclosure/2025/Jul/34

Frequently Asked Questions

What is CVE-2025-43255? +

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7, macOS Ventura 13.7.7. An app may be able to cause unexpected system termination. It has a CVSS v3.1 base score of 3.3 (LOW).

How severe is CVE-2025-43255? +

CVE-2025-43255 has a CVSS v3.1 score of 3.3 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2025-43255? +

CVE-2025-43255 affects products from apple, specifically: macos. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-43255? +

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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