D-Link DIR-3040 prog.cgi SetWan3Settings Stack-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-3040 routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the prog.cgi binary, which handles HNAP requests made to the lighttpd webserver listening on TCP ports 80 and 443. The issue results from the lack of proper validation of a user-supplied string before copying it to a fixed-size stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21618.
History

Thu, 15 May 2025 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Dlink
Dlink dir-3040
Dlink dir-3040 Firmware
Weaknesses CWE-787
CPEs cpe:2.3:h:dlink:dir-3040:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-3040_firmware:*:*:*:*:*:*:*:*
Vendors & Products Dlink
Dlink dir-3040
Dlink dir-3040 Firmware
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: zdi

Published: 2024-05-03T02:12:11.644Z

Updated: 2024-08-02T18:54:04.429Z

Reserved: 2023-08-24T19:16:24.562Z

Link: CVE-2023-41218

cve-icon Vulnrichment

Updated: 2024-08-02T18:54:04.429Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-03T03:15:33.817

Modified: 2025-05-15T12:43:43.143

Link: CVE-2023-41218

cve-icon Redhat

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