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CVE-2025-54796

9001 Copyparty denial of service

7.5 HIGHPublic exploitEPSS 0.43%
  1. Published1 Aug 2025

Description

Copyparty is a portable file server. Versions prior to 1.18.9, the filter parameter for the "Recent Uploads" page allows arbitrary RegExes. If this feature is enabled (which is the default), an attacker can craft a filter which deadlocks the server. This is fixed in version 1.18.9.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

9001 Copyparty< 1.18.9

Remediation

Fixed in
9001 Copyparty≥ 1.18.9

References

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Frequently asked

Is CVE-2025-54796 being actively exploited?

CVE-2025-54796 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.43%.

How severe is CVE-2025-54796?

CVE-2025-54796 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.43% probability of exploitation.

Which products are affected by CVE-2025-54796?

Affected products include 9001 Copyparty.

How do I fix CVE-2025-54796?

Upgrade affected software to a fixed version, for example 9001 Copyparty 1.18.9 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-54796 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.