How to fix CVE-2025-25037?

Within 24 hours: Identify all Aquatronica Controller Systems in your environment running firmware ≤5.1.6 or web interface ≤2.0 and isolate them from untrusted networks; disable external access to the tcp.php endpoint immediately. Within 7 days: Deploy network segmentation to restrict access to affected systems to authorized personnel only, implement WAF rules to block POST requests to tcp.php, and enable detailed logging of all access attempts. Within 30 days: Monitor vendor security advisories for patch availability; prepare upgrade testing and deployment procedures; consider replacing systems if patches remain unavailable and risk cannot be adequately mitigated.

Is PHP affected by CVE-2025-25037?

A critical vulnerability in Aquatronica Controller System firmware allows unauthenticated attackers to steal administrative credentials and sensitive configuration data through a publicly exploited flaw, with no patch currently available.

PHP CVE-2025-25037

EUVD-2025-18781 CRITICAL

Information Exposure (CWE-200)

2025-06-20 [email protected]

PHP Information Disclosure

9.3

CVSS 4.0

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Lifecycle Timeline

EUVD ID Assigned

Mar 15, 2026 - 00:19 euvd

EUVD-2025-18781

Analysis Generated

Mar 15, 2026 - 00:19 vuln.today

PoC Detected

Jun 23, 2025 - 20:16 vuln.today

Public exploit code

CVE Published

Jun 20, 2025 - 19:15 nvd

CRITICAL 9.3

DescriptionNVD

An information disclosure vulnerability exists in Aquatronica Controller System firmware versions <= 5.1.6 and web interface versions <= 2.0. The tcp.php endpoint fails to restrict unauthenticated access, allowing remote attackers to issue crafted POST requests and retrieve sensitive configuration data, including plaintext administrative credentials. Exploitation of this flaw can lead to full compromise of the system, enabling unauthorized manipulation of connected devices and aquarium parameters.

AnalysisAI

CVE-2025-25037 is a critical authentication bypass vulnerability in Aquatronica Controller System that exposes an unauthenticated tcp.php endpoint, allowing remote attackers to retrieve plaintext administrative credentials and sensitive system configuration data without authentication. Affected versions include firmware ≤5.1.6 and web interface ≤2.0. Successful exploitation enables complete system compromise, including unauthorized control of connected aquarium devices and manipulation of critical parameters, representing a direct path to full administrative access with no user interaction required.

Technical ContextAI

The vulnerability exists in the tcp.php endpoint of Aquatronica's web-based controller management interface. The root cause is CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor), stemming from inadequate access control mechanisms on a sensitive administrative endpoint. The endpoint fails to implement proper authentication validation before processing POST requests that query system configuration—specifically those containing administrative credentials. This is a classic authentication bypass rather than authorization bypass: the endpoint does not check whether a user is authenticated at all before granting access to sensitive data structures. The Aquatronica Controller System is a networked IoT device for aquarium management, typically accessible via HTTP/HTTPS interfaces. The tcp.php endpoint appears to be a backend service handler for device communication, likely intended for authenticated management stations but exposed without protective middleware.

RemediationAI

Immediate actions: (1) Upgrade Aquatronica Controller System firmware to version >5.1.6 (latest available stable release); (2) Upgrade web interface to version >2.0; (3) If immediate patching is not feasible, implement network-level mitigations: restrict HTTP/HTTPS access to the Aquatronica device to trusted management networks only using firewall rules, disable external Internet exposure, and implement VPN/bastion host access patterns. (4) Audit system logs for unauthorized tcp.php endpoint access (look for POST requests to /tcp.php from unexpected sources). (5) Reset all administrative credentials after patching, as any unpatched system should be assumed compromised. (6) Monitor Aquatronica's vendor advisory page and GitHub security advisories for patch release dates. Contact Aquatronica support ([email protected] or equivalent) for enterprise patch availability and deployment guidance if custom configurations exist.

CVE-2025-25037 vulnerability details – vuln.today

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