What is CVE-2020-27865?

CVE-2020-27865 is a high-severity vulnerability in D-Link Dap-1860, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.8/10. Published 2021-02-12.

How severe is CVE-2020-27865?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in D-Link Dap-1860

CVE-2020-27865

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 uhttpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the device. Was ZDI-CAN-10894.

EPSS: 0.025 (83.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

D-link Dap-1860 — versions firmware version 1.04B03
Dlink Dap-1860 — versions ax
Dlink Dap-1860_firmware

Weakness classification (CWE)

References

zdi-disclosures@trendmicro.com (x_refsource_MISC, Vendor Advisory)
zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-27865?: CVE-2020-27865 is a high-severity vulnerability in D-Link Dap-1860, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.8/10. Published 2021-02-12.
How severe is CVE-2020-27865?: High severity. CVSS v3 base score is 8.8 out of 10.