CVE-2025-58436 MEDIUM

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

Vendor Openprinting
Product cups
Weakness CWE-400
Published November 29, 2025
Last update December 3, 2025
View on NVD All CVEs

CVSS base score

5.1/10
Attack vector Local
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

November 29, 2025 CVE published
December 3, 2025 Record updated