Fixed
Created: Apr 9, 2026
Updated: Aug 31, 2026
Resolved Date: Aug 31, 2026
Found In Version: 10.25.33.2
Fix Version: 10.25.33.11
Severity: Standard
Applicable for: Wind River Linux LTS 25
Component/s: Userspace
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a use-after-free vulnerability exists in the CUPS scheduler (cupsd) when temporary printers are automatically deleted. cupsdDeleteTemporaryPrinters() in scheduler/printers.c calls cupsdDeletePrinter() without first expiring subscriptions that reference the printer, leaving cupsd_subscription_t.dest as a dangling pointer to freed heap memory. The dangling pointer is subsequently dereferenced at multiple code sites, causing a crash (denial of service) of the cupsd daemon. With heap grooming, this can be leveraged for code execution.
