CVE-2020-8863

Name: CVE-2020-8863
Creator: NVD / NIST
Published: 2020-03-23T21:15:12.377+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 76.73%

Last modified Jun 17, 2026

CVE-2020-8863 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 DIR-867, DIR-878, and DIR-882 routers with firmware 1.10B04. Authentication is not required to exploit this vulnerability. EPSS estimates a 76.73% chance of exploitation in the next 30 days.

Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR-882 routers with firmware 1.10B04. 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 implementation of the authentication algorithm. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the router. Was ZDI-CAN-9470.

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

76.73%

99.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dlink	Dir-878 Firmware	<= 1.20b03
Dlink	Dir-882 Firmware	<= 1.10b04
Dlink	Dir-867 Firmware	<= 1.10b04

References

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10157Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-267/Third Party Advisory, VDB Entry
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10157Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-267/Third Party Advisory, VDB Entry

Timeline

Published: Mar 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8863?

How severe is CVE-2020-8863?

CVE-2020-8863 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 76.73% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8863?

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-2020-8863?

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

Scan your code now

Source: NVD / NIST