CVE-2025-41090Public exploitNetwork attack vector

Cross-tenant access via unchecked organization identifiers

Published Oct 28, 2025 · Updated Oct 28, 2025

Improper access control in CCN-CERT microCLAUDIA 3.2.0 and earlier allows remote authenticated users to access other tenants via API requests. The central service API accepts an organization identifier without verifying that the authenticated account belongs to that organization. A valid account and a known or guessed identifier permit cross-tenant asset management, agent removal, and vaccine-configuration deletion.

CVSS severity7.6
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in CCN-CERT microCLAUDIA 3.2.0 and earlier allows remote authenticated users to access other tenants via API requests. The central service API accepts an organization identifier without verifying that the authenticated account belongs to that organization. A valid account and a known or guessed identifier permit cross-tenant asset management, agent removal, and vaccine-configuration deletion.

The record

CVE
CVE-2025-41090
Published
Oct 28, 2025
Updated
Oct 28, 2025
Vendor
CCN-CERT
Product
microCLAUDIA
Classifications
CWE-306, CAPEC-578, T1562.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CCN-CERT · microCLAUDIAversion=3.2.0

Published CVSS scores

7.6Spanish National Cybersecurity Institute, S.A. (INCIBE)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CAPEC-578Disable Security Software
T1562.001Impair Defenses: Disable or Modify Tools

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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