CVE-2020-8864: d-link multiple routers Incorrect Comparison
Vulnerability summary
CVE-2020-8864 is a high (CVSS 8.8) Incorrect Comparison vulnerability in d-link multiple routers. EPSS estimates a 80.22% chance of exploitation in the next 30 days, higher than 99.6% of scored vulnerabilities.
Timeline
- 23-03-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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 handling of empty passwords. An attacker can leverage this vulnerability to execute arbitrary code on the router. Was ZDI-CAN-9471.
CVSS metrics
4 scores · 2 sources · 3 versions- NVDNIST8.8HighCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
80.22%
Chance of exploitation in the next 30 days
Percentile
100%
Versus all other CVEs
30-day change
0.00 pp
From 80.22% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Dlink3 products
- dir-867_firmware≤ 1.10b04
- dir-878_firmware≤ 1.20b03
- dir-882_firmware≤ 1.10b04
D-link1 product
- multiple routers1.10B04
2 vendors · 4 products
References
2 links- supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10157X Refsource MISCVendor Advisory