CVE-2025-58436: Openprinting Cups

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to version 2.4.15, a client that connects to cupsd but sends slow messages, e.g. only one byte per second, delays cupsd as a whole, such that it becomes unusable by other clients. This issue has been patched in version 2.4.15.

Affected products

• Openprinting Cups: before 2.4.15 (fixed in 2.4.15)

Published 2025-11-29. Last modified 2026-10-07.