---
id: CVE-2025-58436
title: >-
  OpenPrinting CUPS is an open source printing system for Linux and other
  Unix-like operating systems
summary: >-
  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…
severity: medium
cvss: 5.1
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
vendor: openprinting
product: cups
affected:
  - cups < 2.4.15
patched:
  - cups 2.4.15
published: '2025-11-29'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T20:10:01.970'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-58436'
references:
  - url: >-
      https://github.com/OpenPrinting/cups/commit/40008d76a001babbb9beb9d9d74b01a86fb6ddb4
    label: security-advisories@github.com
  - url: 'https://github.com/OpenPrinting/cups/releases/tag/v2.4.15'
    label: security-advisories@github.com
  - url: >-
      https://github.com/OpenPrinting/cups/security/advisories/GHSA-8wpw-vfgm-qrrr
    label: security-advisories@github.com
  - url: 'http://www.openwall.com/lists/oss-security/2025/11/27/4'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://github.com/OpenPrinting/cups/security/advisories/GHSA-8wpw-vfgm-qrrr
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.0023
epssPercentile: 0.12687
ingestedAt: '2026-10-07T20:46:46.739Z'
---

## Overview

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.

## Affected

- `cups < 2.4.15`

## Remediation

Upgrade past the affected range:

- `cups 2.4.15`