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High severity8.8NVD Advisory· Published Feb 12, 2021· Updated Jun 17, 2026

CVE-2020-27864

CVE-2020-27864

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1860 firmware version 1.04B03 WiFi extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HNAP service, which listens on TCP port 80 by default. When parsing the Authorization request header, 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 device. Was ZDI-CAN-10880.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Dlink/Dap 1860 Firmware
    cpe:2.3:o:dlink:dap-1860_firmware:*:*:*:*:*:*:*:*
    Range: <=1.04b03
  • Dlink/DAP-1860llm-create2 versions
    = 1.04B03+ 1 more
    • (no CPE)range: = 1.04B03
    • (no CPE)range: firmware version 1.04B03

Patches

Vulnerability mechanics

References

2

News mentions

0

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