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CVE-2023-51622 Details

Description

D-Link DIR-X3260 prog.cgi SetTriggerPPPoEValidate 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-X3260 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-21672.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.8 MEDIUMVector:CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:6.8 MEDIUMVector:CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10365	CVE	Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-24-042/	CVE	Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10365	[email protected]	Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-24-042/	[email protected]	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	[email protected]
CWE-121	Stack-based Buffer Overflow	[email protected]

Affected Products

Product	Versions
dlink dir-x3260 firmware	< 1.04b01
CPE cpe:2.3:o:dlink:dir-x3260_firmware:::::::: Remediation No remediation found in references.
dlink dir-x3260	All versions
CPE cpe:2.3:h:dlink:dir-x3260:-:::::::* Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Nov 22, 2024	Initial Analysis	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
May 3, 2024	New CVE Received	[email protected]