Medium severity · published Nov 29, 2025
CVE-2025-58436
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CU
Cups · Openprinting
before 2.4.15 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-58436
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-58436
Patch
https://github.com/OpenPrinting/cups/commit/40008d76a001babbb9beb9d9d74b01a86fb6ddb4
Release Notes
https://github.com/OpenPrinting/cups/releases/tag/v2.4.15
Exploit
https://github.com/OpenPrinting/cups/security/advisories/GHSA-8wpw-vfgm-qrrr
Mailing List
http://www.openwall.com/lists/oss-security/2025/11/27/4
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