Unresponsive Behavior in OpenPrinting CUPS Before Version 2.4.15
CVE-2025-58436

5.1MEDIUM

Key Information:

Vendor

Openprinting

Status
Cups
Vendor
CVE Published:
29 November 2025

What is CVE-2025-58436?

OpenPrinting CUPS, an open source printing system, is susceptible to a denial of service vulnerability that occurs when a client sends messages at a very slow rate (e.g., one byte per second). This behavior causes a significant delay in the cupsd service, rendering it unusable for other clients attempting to connect. The issue has been effectively mitigated in version 2.4.15, which addresses this performance bottleneck.

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Affected Version(s)

cups < 2.4.15

References

https://github.com/OpenPrinting/cups/security/advisories/...
x_refsource_CONFIRM
https://github.com/OpenPrinting/cups/commit/40008d76a001b...
x_refsource_MISC
https://github.com/OpenPrinting/cups/releases/tag/v2.4.15
x_refsource_MISC

CVSS V3.1

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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