# CVE-2025-54816: EVMAPA Missing Authentication for Critical Function

> Attackers can access sensitive data or perform unauthorized actions via an unauthenticated WebSocket endpoint in EVMAPA systems.

- **Severity:** Critical 9.4 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Jan 2026
- **Updated:** 23 Jan 2026
- **Also known as:** GHSA-fpfh-v96r-h7v9

## What is CVE-2025-54816?

CVE-2025-54816 is a critical missing authorization vulnerability in EVMAPA, published on 22 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2025-54816?

It affects 1 product.


Products: Evmapa Evmapa.

## How do I fix CVE-2025-54816?

No fix has been published for CVE-2025-54816 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-54816 being exploited?

There is no known exploitation of CVE-2025-54816 in the wild and no public exploit code.

## Other vulnerabilities in EVMAPA

- [CVE-2025-53968](https://insights.sbomify.com/CVE-2025-53968/): EVMAPA Improper Restriction of Excessive Authentication Attempts (high 7.5)
- [CVE-2025-55705](https://insights.sbomify.com/CVE-2025-55705/): EVMAPA Insufficient Session Expiration (high 7.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-54816 and fix it if it is affected.

What it is: CVE-2025-54816 is a critical missing authorization vulnerability in EVMAPA, published on 22 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-54816 in the wild and no public exploit code.

Affected product: EVMAPA. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-54816/ (Markdown: https://insights.sbomify.com/CVE-2025-54816/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-54816
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-54816
- OSV: https://osv.dev/vulnerability/CVE-2025-54816

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-54816/
Summaries are generated and may contain mistakes; the official description above is the record.