| Title | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Authentication Bypass Issues |
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| Description | We identified an authentication bypass vulnerability in a recently released firmware of a D-Link NAS device. This vulnerability allows remote attackers to bypass authentication checks and gain unauthorized access via specially crafted requests.By abusing the cgi_set_wto interface, an attacker can modify the default admin account configuration to achieve persistent privileged access. After establishing this unauthorized persistence, the attacker can access arbitrary management interfaces, and further chain this vulnerability with other authenticated flaws, such as command injection or buffer overflow vulnerabilities, to ultimately gain full control of the device. |
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| Source | ⚠️ https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_96/96.md |
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| User | pjq123 (UID 86618) |
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| Submission | 03/02/2026 09:52 (5 months ago) |
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| Moderation | 03/15/2026 09:22 (13 days later) |
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| Status | Accepted |
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| VulDB entry | 351106 [D-Link DNS-1550-04 up to 20260205 /cgi-bin/system_mgr.cgi cgi_set_wto access control] |
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| Points | 20 |
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