D-Link DIR-3040 prog.cgi websSecurityHandler Memory Leak Denial-of-Service Vulnerability. This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of D-Link DIR-3040 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the prog.cgi program, which handles HNAP requests made to the lighttpd webserver listening on ports 80 and 443. The issue results from the lack of proper memory management when processing HTTP cookie values. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. . Was ZDI-CAN-21668.
History

Wed, 06 Aug 2025 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Dlink
Dlink dir-3040
Dlink dir-3040 Firmware
CPEs cpe:2.3:h:dlink:dir-3040:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-3040_firmware:120b03:*:*:*:*:*:*:*
Vendors & Products Dlink
Dlink dir-3040
Dlink dir-3040 Firmware
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: zdi

Published: 2024-05-23T21:29:48.169Z

Updated: 2024-08-01T21:11:12.440Z

Reserved: 2024-05-23T21:22:48.988Z

Link: CVE-2024-5294

cve-icon Vulnrichment

Updated: 2024-08-01T21:11:12.440Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-23T22:15:15.213

Modified: 2025-08-06T14:25:50.467

Link: CVE-2024-5294

cve-icon Redhat

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