LearnCTEM.com, Best CTEM Learning Platform
CVE Intelligence Hub

CVE-2025-54816: Evmapa Missing Authentication (CVSS 9.4)

CVE-2025-54816 is a critical severity missing authentication in Evmapa with a CVSS score of 9.4. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Last updated: Jun 17, 2026

Quick answer

Direct answer

CVE-2025-54816 is a critical severity missing authentication in Evmapa with a CVSS score of 9.4. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Risk scores

CVSS base score
9.4CRITICAL
EPSS probability
0.47%
Higher than 40 percent of all CVEs
CISA KEV
Not listed
CVSS metricWhat it means
Attack vector (AV:N)Network: reachable remotely
Attack complexity (AC:L)Low complexity
Privileges required (PR:N)No privileges required
User interaction (UI:N)No user interaction
Scope (S:U)Scope unchanged
Confidentiality (C:H)High confidentiality impact
Integrity (I:H)High integrity impact
Availability (A:L)Low availability impact

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

About Evmapa

CVE-2025-54816 affects Evmapa, a product from Evmapa. Before acting, confirm where Evmapa runs in your estate, who owns it and whether it is reachable from the internet, because exposure decides real risk more than the score alone.

What the flaw is

In plain terms: This vulnerability occurs when a WebSocket endpoint does not enforce proper authentication mechanisms, allowing unauthorized users to establish connections. As a result, attackers can exploit this weakness to gain unauthorized access to sensitive data or perform unauthorized actions. Given that no authentication is required, this can lead to privilege escalation and potentially compromise the security of the entire system.

The weakness class is Missing Authentication. A critical function can be used without logging in.

Based on its CVSS vector, the flaw can be reached over the network, needs no login, and needs no user interaction. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Affected versions and timeline

FieldDetail
ProductEvmapa
Affected versionsEvmapa all listed versions
PublishedJan 22, 2026
Last modifiedJun 17, 2026
Added to CISA KEVNot listed
Assigning CNAics-cert@hq.dhs.gov

How to detect it

  • Inventory every instance of Evmapa and record the running version against the affected range above.
  • Check external attack surface scans for internet facing instances of the component.
  • Review logs on affected systems for unusual requests, errors or new processes around the vulnerable function.
  • Confirm with an authenticated vulnerability scan once your scanner has a check for this CVE.

How to fix it

  • Apply the fixed version of Evmapa named in the vendor advisory.
  • If patching must wait, restrict network access to the affected service and put it behind authentication or a web application firewall rule.
  • Rescan after the change to prove the exposure is gone, then close the ticket.

CTEM action plan

CTEM stageWhat to do for this CVE
ScopeAdd every business service that depends on Evmapa to the current CTEM cycle.
DiscoverFind all instances, including shadow and cloud deployments, and record versions and exposure.
PrioritizeRank using EPSS and CVSS together with asset exposure and business impact.
ValidateConfirm the flaw is reachable and exploitable in your environment and that compensating controls work.
MobilizeAssign the fix to the asset owner with a due date matched to the priority, then verify closure.

CWE References

Technical References

Frequently asked questions

CVE-2025-54816 is a critical severity missing authentication in Evmapa with a CVSS score of 9.4. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Related CVEs

HIGH7.3
CVE-2025-55705
Evmapa

This vulnerability occurs when the system permits multiple simultaneous connections to the backend using the same charging station ID. This can result in unauthorized access, data inconsistency, or potential manipulation of charging sessions. The lack of proper session management and expiration control allows attackers to exploit this weakness by reusing valid charging station IDs to establish multiple sessions concurrently.

Jan 22, 2026
CRITICAL10.0
CVE-2026-34162
Fastgpt

FastGPT is an AI Agent building platform. Prior to version 4.14.9.5, the FastGPT HTTP tools testing endpoint (/api/core/app/httpTools/runTool) is exposed without any authentication. This endpoint acts as a full HTTP proxy — it accepts a user-supplied baseUrl, toolPath, HTTP method, custom headers, and body, then makes a server-side HTTP request and returns the complete response to the caller. This issue has been patched in version 4.14.9.5.

Mar 31, 2026
CRITICAL10.0
CVE-2026-25885
Polarlearn

PolarLearn is a free and open-source learning program. In 0-PRERELEASE-16 and earlier, the group chat WebSocket at wss://polarlearn.nl/api/v1/ws can be used without logging in. An unauthenticated client can subscribe to any group chat by providing a group UUID, and can also send messages to any group. The server accepts the message and stores it in the group’s chatContent, so this is not just a visual spam issue.

Feb 9, 2026
CRITICAL10.0
CVE-2026-26333
Calero Verasmart

Calero VeraSMART versions prior to 2022 R1 expose an unauthenticated .NET Remoting HTTP service on TCP port 8001. The service publishes default ObjectURIs (including EndeavorServer.rem and RemoteFileReceiver.rem) and permits the use of SOAP and binary formatters with TypeFilterLevel set to Full. An unauthenticated remote attacker can invoke the exposed remoting endpoints to perform arbitrary file read and write operations via the WebClient class. This allows retrieval of sensitive files such as WebRoot\\web.config, which may disclose IIS machineKey validation and decryption keys. An attacker can use these keys to generate a malicious ASP.NET ViewState payload and achieve remote code execution within the IIS application context. Additionally, supplying a UNC path can trigger outbound SMB authentication from the service account, potentially exposing NTLMv2 hashes for relay or offline cracking.

Feb 13, 2026
CRITICAL10.0
CVE-2026-3611
Honeywell Iq4e Firmware

The Honeywell IQ4x building management controller, exposes its full web-based HMI without authentication in its factory-default configuration. With no user module configured, security is disabled by design and the system operates under a System Guest (level 100) context, granting read/write privileges to any party able to reach the HTTP interface. Authentication controls are only enforced after a web user is created via U.htm, which dynamically enables the user module. Because this function is accessible prior to authentication, a remote user can create a new account with administrative read/write permissions enabling the user module and imposing authentication under attacker-controlled credentials. This action can effectively lock legitimate operators out of local and web-based configuration and administration.

Mar 12, 2026
CRITICAL10.0
CVE-2026-22238
Blusparkglobal Bluvoyix

The vulnerability exists in BLUVOYIX due to improper authentication in the BLUVOYIX admin APIs. An unauthenticated remote attacker could exploit this vulnerability by sending specially crafted HTTP requests to the vulnerable admin API to create a new user with admin privileges. Successful exploitation of this vulnerability could allow the attacker to gain full access to customers' data and completely compromise the targeted platform by logging in to the newly-created admin user.

Jan 14, 2026
All Evmapa CVEs in 2026
Your next credential

Earn your free CTEM certification.

Learn to scope, prioritize, validate and mobilize fixes for CVEs like CVE-2025-54816 with a free CTEM certification.

Free to takePublicly verifiable

Beginner / Practitioner / Program Leader

Explore certifications