CVE-2025-58436

MEDIUM5.1

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

Published Nov 29, 2025

Modified 1 months ago

Details

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.

References

WEBhttp://www.openwall.com/lists/oss-security/2025/11/27/4 WEBhttps://github.com/OpenPrinting/cups/commit/40008d76a001babbb9beb9d9d74b01a86fb6ddb4 WEBhttps://github.com/OpenPrinting/cups/releases/tag/v2.4.15 DETECTIONhttps://github.com/OpenPrinting/cups/security/advisories/GHSA-8wpw-vfgm-qrrr ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-58436

CVSS Analysis

CVSS v3.1

5.1

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

HighAC:H

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

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

Weakness Type (CWE)

Resource Management

CWE-400

Resource Exhaustion

Ecosystems

Timeline

PublishedNov 29, 2025

ModifiedDec 3, 2025