CVE-2020-8864 in the critical feed json
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR…
published 2020-03-23 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-29706
- cvss
- 8.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 81.7%
- EPSS 81.7% chance of exploitation in 30 days, percentile 99.6%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
81.68% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-08).
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 Multiple Routers
Classification
- Weakness
-
- CWE-697 Incorrect Comparison
References
-
supportannouncement.us.dlink.com
/announcement/publication.aspx?name=SAP10157
vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-20-268/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2020-8864
- NVD CVE-2020-8864
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.