CVE-2025-58436: OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to version…
CVE-2025-58436 · Severity: medium · CVSS 5.1 · Published 2025-11-29
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.
No. Junglewise Threat Intelligence has no report of CVE-2025-58436 being exploited in the wild.
How severe is CVE-2025-58436?
Medium severity, with a CVSS score of 5.1, published 29 November 2025.
Which products and versions are affected?
OpenPrinting Cups. The advisory does not name versions.
Is there a fix for CVE-2025-58436?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-58436?
Check whether you run OpenPrinting Cups. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.