CVE-2025-43237 — CRITICAL (9.8)

Q: What is CVE-2025-43237?

CVE-2025-43237 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.6. An app may be able to cause unexpected system termination.

Q: How severe is CVE-2025-43237?

CVE-2025-43237 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2025-43237?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Macos.

Vulnerability Description

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

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apple	Macos	< 15.6

Related Weaknesses (CWE)

CWE-787

References

https://support.apple.com/en-us/124149Release NotesVendor Advisory
http://seclists.org/fulldisclosure/2025/Jul/32

FAQ

What is CVE-2025-43237?

CVE-2025-43237 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.6. An app may be able to cause unexpected system termination.

How severe is CVE-2025-43237?

CVE-2025-43237 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-43237?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Macos.