Buffer overflow in macOS - CVE-2026-28931
Published: August 17, 2026
Vulnerability identifier: #VU143790
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-28931
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the NFS support in the kernel. A remote attacker with control over a malicious NFS server can trick the user into connecting to it, trigger a buffer overflow and execute arbitrary code on the system.
Affected software
macOS
tvOS
iPadOS
Apple iOS
watchOS
tvOS
iPadOS
Apple iOS
watchOS
How to mitigate CVE-2026-28931
Install updates from vendor's website.
macOS - update to 26.6 25G72
tvOS - update to 26.6 23L773
iPadOS - update to 26.6 23G71
Apple iOS - update to 26.6 23G71
watchOS - update to 26.6 23U67
tvOS - update to 26.6 23L773
iPadOS - update to 26.6 23G71
Apple iOS - update to 26.6 23G71
watchOS - update to 26.6 23U67