CVE-2020-8861

Name: CVE-2020-8861
Creator: NVD / NIST
Published: 2020-02-22T00:15:10.843+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 6.54%

Last modified Jun 17, 2026

CVE-2020-8861 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 6.54% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

6.54%

92.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Dlink	Dap-1330 Firmware	< 1.10b01	—
Dlink	Dap-1330 Firmware	1.10b01	Beta

References

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10155Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-265/Third Party Advisory, VDB Entry
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10155Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-265/Third Party Advisory, VDB Entry

Timeline

Published: Feb 22, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8861?

How severe is CVE-2020-8861?

CVE-2020-8861 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 6.54% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8861?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-8861?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST