Auth bypass in Tcman Gim
CVE-2025-40667
Missing authorization vulnerability in TCMAN's GIM v11. This allows an authenticated attacker to access any functionality of the application even when they are not available through the user interface. To exploit the vulnerability the attacker must modify the HTTP code of the response from ‘302 Found’ to ‘200 OK’, as well as the hidden fields hdnReadOnly and hdnUserLogin.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (16.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 16.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Tcman Gim — versions 11.0, 11
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-tcman-gim-0 (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-40667?
- CVE-2025-40667 is a medium-severity vulnerability in Tcman Gim, classified under Missing Authorization. CVSS score: 6.5/10. Published 2025-05-26.
- How severe is CVE-2025-40667?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2025-40667 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.