D-Link DIR-2640 HTTP Referer 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-2640-US routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within prog.cgi, 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 the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21853.
History

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

Type Values Removed Values Added
First Time appeared Dlink
Dlink dir-2640
Dlink dir-2640 Firmware
CPEs cpe:2.3:h:dlink:dir-2640:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-2640_firmware:1.11b02:*:*:*:*:*:*:*
Vendors & Products Dlink
Dlink dir-2640
Dlink dir-2640 Firmware

cve-icon MITRE

Status: PUBLISHED

Assigner: zdi

Published: 2024-05-23T21:29:44.062Z

Updated: 2024-08-01T21:11:11.627Z

Reserved: 2024-05-23T21:22:42.170Z

Link: CVE-2024-5293

cve-icon Vulnrichment

Updated: 2024-08-01T21:11:11.627Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-23T22:15:15.000

Modified: 2025-08-06T14:26:03.143

Link: CVE-2024-5293

cve-icon Redhat

No data.