# CVE-2025-40664: Missing authentication vulnerability in TCMAN GIM v11

> Unauthenticated attackers can access user management endpoints to read, update, or delete user data in TCMAN GIM.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 May 2025
- **Updated:** 27 May 2025
- **Also known as:** GHSA-77h5-q643-73mf

## What is CVE-2025-40664?

CVE-2025-40664 is a critical missing authorization vulnerability in TCMAN GIM, published on 26 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Missing authentication vulnerability in TCMAN GIM v11. This allows an unauthenticated attacker to access the resources /frmGestionUser.aspx/GetData, /frmGestionUser.aspx/updateUser and /frmGestionUser.aspx/DeleteUser.

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

## Which versions are affected by CVE-2025-40664?

It affects 1 product.


Products: Tcman Gim.

## How do I fix CVE-2025-40664?

No fix has been published for CVE-2025-40664 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-40664 being exploited?

There is no known exploitation of CVE-2025-40664 in the wild and no public exploit code.

## Other vulnerabilities in TCMAN GIM

- [CVE-2021-40850](https://insights.sbomify.com/CVE-2021-40850/): TCMAN GIM SQL injection vulnerability (critical 10.0)
- [CVE-2022-36276](https://insights.sbomify.com/CVE-2022-36276/): SQL injection vulnerability in TCMAN GIM (critical 9.9)
- [CVE-2025-40620](https://insights.sbomify.com/CVE-2025-40620/): Multiple vulnerabilities in TCMAN's GIM (critical 9.3)
- [CVE-2025-40621](https://insights.sbomify.com/CVE-2025-40621/): Multiple vulnerabilities in TCMAN's GIM (critical 9.3)
- [CVE-2025-40622](https://insights.sbomify.com/CVE-2025-40622/): Multiple vulnerabilities in TCMAN's GIM (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-40664 and fix it if it is affected.

What it is: CVE-2025-40664 is a critical missing authorization vulnerability in TCMAN GIM, published on 26 May 2025. 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-2025-40664 in the wild and no public exploit code.

Affected product: TCMAN GIM. 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-2025-40664/ (Markdown: https://insights.sbomify.com/CVE-2025-40664/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-40664
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-40664
- OSV: https://osv.dev/vulnerability/CVE-2025-40664

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-40664/
Summaries are generated and may contain mistakes; the official description above is the record.