This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DAP-1330 1.10B01 BETA Wi-…

published 2020-02-22 6y ago modified 2026-06-17 4mo ago also EUVD-2020-29703

cvss: 8.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 6.5%; EPSS 6.5% chance of exploitation in 30 days, percentile 93%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

dlink dap-1330_firmware 1.10b01

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Exploit prediction

6.54% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	8.8	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	8.3	AV:A/AC:L/Au:N/C:C/I:C/A:C

Affected products

D-Link DAP-1330

Classification

Weakness

CWE-303 Incorrect Implementation of Authentication Algorithm
CWE-287 Improper Authentication

References

supportannouncement.us.dlink.com /announcement/publication.aspx?name=SAP10155
vendor-advisory
zerodayinitiative.com /advisories/ZDI-20-265/
third-party-advisory, vdb-entry

Sources

CVE List CVE-2020-8861
NVD CVE-2020-8861

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