#VU106405 Time-of-check Time-of-use (TOCTOU) Race Condition in macOS - CVE-2025-24256

Vulnerability identifier: #VU106405

Vulnerability risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-24256

CWE-ID: CWE-367

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
macOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to a race condition within the AppleIntelKBLGraphics kext. A local application can disclose kernel memory.

Mitigation
Install update from vendor's website.

Vulnerable software versions

macOS: 15.0 24A335 - 15.3.2 24D2082

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External links
https://support.apple.com/en-us/122373
https://www.zerodayinitiative.com/advisories/ZDI-25-194/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.