High severity8.8NVD Advisory· Published Feb 12, 2021· Updated Jun 17, 2026
CVE-2020-27862
CVE-2020-27862
Description
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DVA-2800 and DSL-2888A routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dhttpd service, which listens on TCP port 8008 by default. When parsing the path parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the web server. Was ZDI-CAN-10911.
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Affected products
5- cpe:2.3:o:dlink:dsl-2888a_firmware:2.30_au:*:*:*:*:*:*:*
- cpe:2.3:o:dlink:dva-2800_firmware:2.30_au:*:*:*:*:*:*:*
- D-Link/Multiple Routersv5Range: firmware version 2.3
Patches
Vulnerability mechanics
References
2- supportannouncement.us.dlink.com/announcement/publication.aspxnvdVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-20-1426/nvdThird Party AdvisoryVDB Entry
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