Is CVE-2025-54001 actively exploited?

No active exploitation of CVE-2025-54001 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-54001 be exploited remotely?

Yes. CVE-2025-54001 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-54001?

CVE-2025-54001 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2025-54001

CWE-502Published: March 5, 2026· Updated: Mar 5, 2026

9.8

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:6.2th

Official Description

Deserialization of Untrusted Data vulnerability in ThemeREX Classter classter allows Object Injection.This issue affects Classter: from n/a through <= 2.5.

NVD Source

Risk Analysis

This critical vulnerability involves deserialization of untrusted data, which can lead to object injection. With a CVSS score of 9.8, this flaw is highly severe and could allow an attacker to execute arbitrary code or manipulate application logic. The absence of an EPSS score means the exploitation likelihood is unknown, but the critical severity warrants immediate attention.

No public exploit is currently known for this vulnerability. The flaw is remotely exploitable with low attack complexity, meaning an attacker could exploit it over a network without significant effort.

Recommended Action

To mitigate this risk, avoid deserializing untrusted data whenever possible. If deserialization is necessary, implement strict validation and integrity checks on the serialized data before processing it.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-54001 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.