CVE-2020-8864

8.8 HIGH 82% exploit odds Fix listed Auth & access Network gear

What it is

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 handling of empty passwords. An attacker can leverage this vulnerability to execute arbitrary code on the router. Was ZDI-CAN-9471.

At a glance

Exploitability: Can be exploited from the same network segment without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 81.7% chance of exploitation in the next 30 days (EPSS). Higher than most.
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2020-02-11 00:00 UTC ReservedThe CVE id was reserved by its CNA
2020-03-23 21:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:27 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 81.7% in the next 30 days (EPSS).
Severity: 8.8 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2020-03-23 21:15 UTC
Last modified: 2026-06-17 03:27 UTC
Exploit probability: 81.7% · EPSS, next 30 days
Weakness: CWE-697
Record status: Modified

Affected

Dlink dir-878 Firmware ≤ 1.20b03
Dlink dir-882 Firmware ≤ 1.10b04
Dlink dir-867 Firmware ≤ 1.10b04

Attack profile CVSS 3.1 · 8.8

Attack vector: Adjacent network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

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

Is it in your code?

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Fix and advisories

References

NVD record · CVE.org record