Findings

CVE-2025-40896

The server certificate was not verified when an Arc agent connected to a Guardian or CMC.

Published Mar 4, 2026 · updated Jun 17, 2026 · nozominetworks arc

The server certificate was not verified when an Arc agent connected to a Guardian or CMC. A malicious actor could perform a man-in-the-middle attack and intercept the communication between the Arc agent and the Guardian or CMC. This could result in theft of the client token and sensitive information (such as assets and alerts), impersonation of the server, or injection of spoofed data (such as false asset information or vulnerabilities) into the Guardian or CMC.

Code

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Timeline

Detection, updates, and resolution for this record.

  1. Mar 4, 2026 · NIST NVD

    Detected

    The server certificate was not verified when an Arc agent connected to a Guardian or CMC. A malicious actor could perform a man-in-the-middle attack and intercept the communication between the Arc agent and the Guardian or CMC. This could result in theft of the client token and sensitive information (such as assets and alerts), impersonation of the server, or injection of spoofed data (such as fal

  2. Jun 17, 2026 · NIST NVD

    Updated

    The server certificate was not verified when an Arc agent connected to a Guardian or CMC. A malicious actor could perform a man-in-the-middle attack and intercept the communication between the Arc agent and the Guardian or CMC. This could result in theft of the client token and sensitive information (such as assets and alerts), impersonation of the server, or injection of spoofed data (such as fal

Affected

  • cpe nozominetworks/arcversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2025-40896

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2025-40896

    The server certificate was not verified when an Arc agent connected to a Guardian or CMC. A malicious actor could perform a man-in-the-middle attack and intercept the communication between the Arc agent and the Guardian or CMC. This could result in theft of the client token an

    nvd.nist.gov

References

CVE-2025-40896 · ZeroDay Findings