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Vulnerability record · CVE-2023-32152 · published 3 May 2024

CVE-2023-32152: Dlink dir-2640 firmware vulnerability

Dlink · Dir 2640 Firmware

D-Link DIR-2640 HNAP LoginPassword Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-2640 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web management interface, which listens on TCP port 80 by default. A specially crafted login request can cause authentication to succeed without providing proper credentials. An attacker can leverage this vulnerability to bypass authentication on the system. . Was ZDI-CAN-19549.

6.5 CVSS 3.0 Medium EPSS 29% · top 1.9% CWE-303 · CWE-303
6.5CVSS 3.0 base score
29%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

D-Link DIR-2640 HNAP LoginPassword Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-2640 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web management interface, which listens on TCP port 80 by default. A specially crafted login request can cause authentication to succeed without providing proper credentials. An attacker can leverage this vulnerability to bypass authentication on the system. . Was ZDI-CAN-19549.

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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=SAP10323 ProductVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-544/ Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10323 ProductVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-544/ Third Party Advisory

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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-2023-32152), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.