Out-of-bounds write in macOS - CVE-2026-84519
Published: September 14, 2026
Vulnerability identifier: #VU149726
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-84519
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds write in AppleDouble. A remote attacker can trick the victim into opening a specially crafted file and perform unexpected system termination.
Affected software
macOS
How to mitigate CVE-2026-84519
Install update from vendor's website.
macOS - addressed in versions 26.7 25G229, 15.8 24H23