D-Link Nuclias Connect < v1.3.1.4 Directory Traversal to Arbitrary File Deletion

Advisories

severity: high
date: October 9, 2025
Affecting: Nuclias Connect < v1.3.1.4
CVE: CVE-2025-34248
CWE: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSS: 7.2
CVSS V4 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
References: D-Link Nuclias Connect
Credit: Alex Williams from Pellera Technologies
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.