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Vulnerability record · CVE-2020-8861 · published 22 February 2020

CVE-2020-8861: Dlink dap-1330 firmware improper authentication vulnerability

Dlink · Dap 1330 Firmware

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DAP-1330 1.10B01 BETA Wi-Fi range extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper handling of cookies. An attacker can leverage this vulnerability to execute arbitrary code on the router. Was ZDI-CAN-9554.

8.8 CVSS 3.1 High EPSS 6.5% · top 6.4% CWE-303 · CWE-303CWE-287 · Improper authentication
8.8CVSS 3.1 base score, v2 8.3
6.5%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 bypass authentication on affected installations of D-Link DAP-1330 1.10B01 BETA Wi-Fi range extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper handling of cookies. An attacker can leverage this vulnerability to execute arbitrary code on the router. Was ZDI-CAN-9554.

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=SAP10155 Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-265/ Third Party AdvisoryVDB Entry
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10155 Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-265/ 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-2020-8861), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.