Improper input validation in macOS - CVE-2026-84564
Published: September 15, 2026
Vulnerability identifier: #VU149779
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-84564
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to access sensitive information.
The vulnerability exists due to an unspecified flaw in ImageIO when processing input. A remote attacker can cause ImageIO to process input to access sensitive information.
Affected software
macOS
How to mitigate CVE-2026-84564
Install update from vendor's website.
macOS - addressed in versions 26.7 25G229, 15.8 24H23