CVE-2025-58436

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.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-25)

CWE

CWE-400

Published

2025-11-29

Modified

2026-10-07

Record from

the NVD, synced 2026-10-19

Affected

• openprinting:cups

References

• https://github.com/OpenPrinting/cups/commit/40008d76a001babbb9beb9d9d74b01a86fb6ddb4
• https://github.com/OpenPrinting/cups/releases/tag/v2.4.15
• https://github.com/OpenPrinting/cups/security/advisories/GHSA-8wpw-vfgm-qrrr
• http://www.openwall.com/lists/oss-security/2025/11/27/4
• https://github.com/OpenPrinting/cups/security/advisories/GHSA-8wpw-vfgm-qrrr

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