Directory Traversal Vulnerability in D-Link Nuclias Connect Firmware
CVE-2025-34248

7.2HIGH

Key Information:

Vendor

D-link
Status
Nuclias Connect
Vendor
CVE Published:
9 October 2025

What is CVE-2025-34248?

D-Link Nuclias Connect firmware prior to version 1.3.1.4 has a directory traversal vulnerability that arises from insufficient sanitization of the 'deleteBackupList' parameter within the /api/web/dnc/global/database/deleteBackup endpoint. If exploited by an authenticated attacker, this vulnerability could enable the deletion of arbitrary files, thereby compromising the integrity and availability of the affected systems. It is crucial for users to update their firmware to mitigate this risk.

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Affected Version(s)

Nuclias Connect * < 1.3.1.4

References

https://www.vulncheck.com/advisories/dlink-nuclias-connec...
third-party-advisory
https://www.dlink.com/en/for-business/nuclias/nuclias-con...
product
https://supportannouncement.us.dlink.com/security/publica...
vendor-advisorypatch

CVSS V4

Score:
7.2
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alex Williams from Pellera Technologies
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