OpenPrinting CUPS slow client can halt cupsd, leading to a possible DoS attack

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-58436
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-11-29 03:15:59 UTC
Updated2026-10-07 20:10:01 UTC
DescriptionOpenPrinting 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

EPSS: 0.002300000 probability, percentile 0.127250000 (date 2026-10-07)

Problem Types: CWE-400 | CWE-400 CWE-400: Uncontrolled Resource Consumption

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
3.1[email protected]Secondary5.1MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED5.1MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openprinting Cups All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OpenPrinting Cups affected < 2.4.15 Not specified

References

ReferenceSourceLinkTags
github.com/OpenPrinting/cups/security/advisories/GHSA-8wpw-vfgm-qrrr 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit, Vendor Advisory
www.openwall.com/lists/oss-security/2025/11/27/4 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
github.com/OpenPrinting/cups/releases/tag/v2.4.15 [email protected] github.com Release Notes
github.com/OpenPrinting/cups/commit/40008d76a001babbb9beb9d9d74b01a86fb6... [email protected] github.com Patch
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