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CVE-2025-48389

Freescout insecure deserialization

7.2 HIGHPublic exploitEPSS 0.91%
  1. Published29 May 2025

Description

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.178, FreeScout is vulnerable to deserialization of untrusted data due to insufficient validation. Through the set function, a string with a serialized object can be passed, and when getting an option through the get method, deserialization will occur, which will allow arbitrary code execution This issue has been patched in version 1.8.178.

CVSS 3.1 breakdown

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

Affected products

Freescout< 1.8.178

Remediation

Fixed in
Freescout≥ 1.8.178

References

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Frequently asked

Is CVE-2025-48389 being actively exploited?

CVE-2025-48389 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.91%.

How severe is CVE-2025-48389?

CVE-2025-48389 has a CVSS 3.1 base score of 7.2, rated high. EPSS estimates a 0.91% probability of exploitation.

Which products are affected by CVE-2025-48389?

Affected products include Freescout.

How do I fix CVE-2025-48389?

Upgrade affected software to a fixed version, for example Freescout 1.8.178 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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