CVE-2024-5293

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector : AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.zerodayinitiative.com/advisories/ZDI-24-444/	Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-24-444/	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:dlink:dir-2640_firmware:1.11b02:*:*:*:*:*:*:*

cpe:2.3:h:dlink:dir-2640:-:*:*:*:*:*:*:*

History

06 Aug 2025, 14:26

Type	Values Removed	Values Added
First Time		Dlink Dlink dir-2640 Dlink dir-2640 Firmware
CPE		cpe:2.3:o:dlink:dir-2640_firmware:1.11b02:::::::* cpe:2.3:h:dlink:dir-2640:-:::::::*
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-24-444/ -~~	() https://www.zerodayinitiative.com/advisories/ZDI-24-444/ - Third Party Advisory

Information

Published : 2024-05-23 22:15

Updated : 2025-08-06 14:26

NVD link : CVE-2024-5293

Mitre link : CVE-2024-5293

CVE.ORG link : CVE-2024-5293

JSON object : View

Products Affected

dlink

dir-2640
dir-2640_firmware

CWE

CWE-121

Stack-based Buffer Overflow

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