What’s Vulnerable › Vulnerabilities

CVE-2020-8863

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 78.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-03-23 · updated 2026-06-17
• Weakness: CWE-303

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.

Affected products

• D-Link DIR-867: through 1.10b04
• D-Link DIR-878: through 1.20b03
• D-Link DIR-882: through 1.10b04

References

• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10157
• https://www.zerodayinitiative.com/advisories/ZDI-20-267/
• https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10157
• https://www.zerodayinitiative.com/advisories/ZDI-20-267/

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