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01 Record

CVE-2025-58436

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

MediumPUBLISHEDCNA: GitHub_M
CNA base score5.1 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
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02 Description

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

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.23% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 13.7% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-07.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-11-29 02:15Z11 MO AGO
Last updated
2025-12-03 15:23Z11 MO AGO
Reserved
2025-09-01
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 5.1)
CNA CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-400Uncontrolled Resource ConsumptionClass
  • CWE-412Unrestricted Externally Accessible LockBase
Data version
5.2
Document digest
7573c46d0c4cdc694e910ffcc0c698630c95aece8d187f5889082082cb4a8a95

05 Affected products

VendorProductVersionsPlatforms
OpenPrintingcups< 2.4.15—

06 References

07 Fixed in

AlmaLinux 8

  • cups
    Fixed in 1:2.2.6-66.el8_10
  • cups-client
    Fixed in 1:2.2.6-66.el8_10
  • cups-devel
    Fixed in 1:2.2.6-66.el8_10
  • cups-filesystem
    Fixed in 1:2.2.6-66.el8_10
  • cups-ipptool
    Fixed in 1:2.2.6-66.el8_10
  • cups-libs
    Fixed in 1:2.2.6-66.el8_10
  • cups-lpd
    Fixed in 1:2.2.6-66.el8_10

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • cups
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-client
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-devel
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-filesystem
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-ipptool
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-libs
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-lpd
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-printerapp
    Fixed in 1:2.3.3op2-34.el9_7.2

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 10

  • cups-filesystem
    Fixed in 1:2.4.10-12.el10_1.2

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • cups
    Fixed in 1:2.2.6-66.el8_10
  • cups-client
    Fixed in 1:2.2.6-66.el8_10
  • cups-devel
    Fixed in 1:2.2.6-66.el8_10
  • cups-filesystem
    Fixed in 1:2.2.6-66.el8_10
  • cups-ipptool
    Fixed in 1:2.2.6-66.el8_10
  • cups-libs
    Fixed in 1:2.2.6-66.el8_10
  • cups-lpd
    Fixed in 1:2.2.6-66.el8_10

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • cups
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-client
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-devel
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-filesystem
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-ipptool
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-libs
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-lpd
    Fixed in 1:2.3.3op2-34.el9_7.2
  • cups-printerapp
    Fixed in 1:2.3.3op2-34.el9_7.2

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 10

  • cups-filesystem
    Fixed in 1:2.4.10-12.el10_1.2

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • cups
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • cups
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • cups
    Fixed in 2.4.15-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • cups
    Fixed in 2.4.1op1-1ubuntu4.16

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • cups
    Fixed in 2.4.7-1.2ubuntu7.9

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • cups
    Fixed in 2.4.12-0ubuntu3.5

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • cups
    Fixed in 2.1.3-4ubuntu0.11+esm12
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • cups
    Fixed in 2.2.7-1ubuntu2.10+esm10
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • cups
    Fixed in 2.3.1-9ubuntu1.9+esm4
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.