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Vulnerability record · CVE-2022-40717 · published 26 January 2023

CVE-2022-40717: Dlink dir-2150 firmware stack-based buffer overflow vulnerability

Dlink · Dir 2150 Firmware

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected D-Link DIR-2150 4.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the anweb service, which listens on TCP ports 80 and 443 by default. 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-15727.

8.8 CVSS 3.1 High EPSS 0.62% · top 52.6% CWE-121 · Stack-based buffer overflowCWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score
0.62%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected D-Link DIR-2150 4.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the anweb service, which listens on TCP ports 80 and 443 by default. 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-15727.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10304 PatchVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-1220/ Third Party AdvisoryVDB Entry
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10304 PatchVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-1220/ Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-40717), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.