Improper input validation in macOS - CVE-2026-84554
Published: September 14, 2026
Vulnerability identifier: #VU149757
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-84554
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in CUPS when processing input. A remote attacker can provide crafted input to cause a denial of service.
Affected software
macOS
How to mitigate CVE-2026-84554
Install update from vendor's website.
macOS - addressed in versions 26.7 25G229, 15.8 24H23