CVE-2020-8863
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 78.4%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 78.41% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-303, CWE-287
- Affected
- dlink/dir-878 firmware · dlink/dir-882 firmware · dlink/dir-867 firmware
- Source
- zdi-disclosures@trendmicro.com
EPSS moved from 78.4% on 25 October 2026 to 78.4% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.