CVE-2025-3425
Published: 07 April 2025
Summary
CVE-2025-3425 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Philips (inferred from references). Its CVSS base score is 7.3 (High).
Operationally, ranked in the top 22.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The vulnerability is a deserialization flaw (CWE-502) in the Philips IntelliSpace Portal application, versions 12 and prior. It stems from the use of .NET Remoting on port 755 with the TypeFilterLevel configuration set to Full, which permits unsafe deserialization of untrusted data and can result in remote code execution.
An attacker with adjacent-network access can exploit the issue by supplying crafted serialized payloads over the exposed port. Successful exploitation grants the ability to execute arbitrary code on the affected server, with high impact to confidentiality, integrity, and availability under the reported CVSS 7.3 vector.
Philips has published security advisories addressing the flaw, available via their security advisories page. The EPSS score rose from a low baseline to a peak of 0.0336, indicating that exploitation interest emerged after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-10701
Vulnerability details
The IntelliSpace portal application utilizes .NET Remoting for its functionality. The vulnerability arises from the exploitation of port 755 through the deserialization vulnerability. After analyzing the configuration files, we observed that the server had set the TypeFilterLevel to Full which…
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is dangerous as it can potentially lead to remote code execution using deserialization. This issue affects IntelliSpace Portal: 12 and prior.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing supplies malicious serialized objects, detecting unsafe deserialization and supporting corrective actions.
Evaluation of untrusted data handling (deserialization testing) reveals unsafe processing, which the required remediation process addresses.
Untrusted serialized data can be deserialized and observed inside the chamber, blocking gadget-chain exploitation outside the sandbox.
Validates or rejects untrusted serialized data before deserialization occurs.
Identifies and blocks malicious code introduced through deserialization of untrusted data at system boundaries.
Integrity verification of serialized information can detect tampering before deserialization occurs.
Provenance of associated data allows detection of untrusted sources before deserialization or processing occurs.