CVE-2025-40666 is a critical blind SQL injection flaw in TCMAN GIM, with a CVSS score of 9.8. INCIBE says TCMAN fixed it in the 20241112 release. Treat any instance reachable from untrusted networks as exposed until you have confirmed the fix, and review your logs for unexpected requests.
What's affected
- Product: TCMAN GIM version 11. INCIBE lists the affected resource as GIM, 11 version.
- Fixed version: INCIBE says TCMAN fixed these vulnerabilities in the 20241112 release.
- Severity: Critical, CVSS 9.8 (vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
- Weakness: CWE-89.
- Published: 2025-05-26.
This is a time-based blind SQL injection in the ArbolID parameter of /GIMWeb/PC/frmPreventivosList.aspx. Blind means the page does not print query results, so the attacker learns about the database from response timing. The record says it allows retrieving, creating, updating and deleting data.
INCIBE advisory INCIBE-2025-0270 covers four GIM CVEs. CVE-2025-40665 and CVE-2025-40666 are the two blind SQL injection flaws, one in a corrective maintenance list page and one in a preventive maintenance list page.
How to check if you're exposed
The advisory does not give a command for reading the installed version, and this is a vendor-supplied product, so the useful check is administrative:
- Find the version or build number your organisation runs.
- Compare it with the fixed version in the advisory.
- If you cannot read the build number yourself, ask the vendor to confirm in writing.
You can also run your dependency manifests and container images through the free in-browser scan to see which known CVEs affect the packages you ship. It will not find a flaw inside a vendor appliance or an unmanaged install, so keep an inventory of those too.
What to do now
- Identify every copy of TCMAN GIM you run, including test and forgotten ones.
- Confirm that your GIM build is the 20241112 release or later.
- Until that is done, remove public access where you can. Put the application behind a VPN, a network allow list or a web application firewall rule, and watch the access and database logs for unusual requests to the endpoint named above.
- Record the outcome, including the date, the version you ended on and who confirmed it, so a later audit has something to read.
- Add the product to your continuous monitoring so a future CVE against it reaches you without a manual search.
Why it matters
SQL injection happens when an application builds a database query by gluing user input into the query text. The database cannot tell where the developer's command ends and the visitor's data begins, so a crafted value can change what the query does. The class is catalogued as CWE-89 (SQL injection).
The usual fix is a parameterized query, where the SQL text and the values travel separately. Input validation helps as a second layer, but it is not a substitute. Because this flaw needs no login and no click from a victim, anything that can reach the page over the network is in range.
The record's KEV flag is false, so CISA does not list it as known to be exploited, and nothing in the sources here says it is being exploited in the wild.
Quick check
What does the score of 9.8 mean for TCMAN GIM?
The vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H reads as network reachable, low complexity, no privileges and no user interaction. The impact ratings are confidentiality high, integrity high, availability high. Use it to rank the work, then confirm exposure for your own deployment.
Is escaping the parameter enough to fix this?
Escaping is fragile and easy to get wrong in one place out of many. Parameterized queries are the reliable fix because the value is never treated as SQL. If you maintain the code, change the query itself rather than patching the symptom.
Sources
Last reviewed: 18 October 2026.
