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.
References (4)
Core 4
Core References
Exploit, Vendor Advisory x_refsource_confirm
https://github.com/OpenPrinting/cups/security/advisories/GHSA-8wpw-vfgm-qrrr
Patch x_refsource_misc
https://github.com/OpenPrinting/cups/commit/40008d76a001babbb9beb9d9d74b01a86fb6ddb4
Release Notes x_refsource_misc
https://github.com/OpenPrinting/cups/releases/tag/v2.4.15
Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/11/27/4
Scores
CVSS v3
5.1
EPSS
0.0002
EPSS Percentile
5.3%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-400
Status
published
Products (1)
openprinting/cups
< 2.4.15
Published
Nov 29, 2025
Tracked Since
Feb 18, 2026