CVE-2025-58436 – OpenPrinting CUPS slow client can halt cupsd, leading to a possible DoS attack

CVE ID : CVE-2025-58436

Published : Nov. 29, 2025, 3:15 a.m. | 1 hour, 8 minutes ago

Description : 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.

Severity: 5.1 | MEDIUM

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