CVE-2020-27872

HIGH

NETGEAR R7450 <1.2.0.62_1.0.1 - Auth Bypass

Title source: llm

Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R7450 1.2.0.62_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from improper state tracking in the password recovery process. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-11365.

References (2)

[Vendor Advisory] https://kb.netgear.com/000062641/Security-Advisory-for-Password-Recovery-Vulnerabilities-on-Some-Routers

[Third Party Advisory, VDB Entry] https://www.zerodayinitiative.com/advisories/ZDI-21-071/

Scores

CVSS v3 8.8

EPSS 0.0111

EPSS Percentile 77.9%

Attack Vector ADJACENT_NETWORK

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-642 CWE-668

Status published

Affected Products (19)

netgear/ac2100_firmware < 1.2.0.76

netgear/ac2400_firmware < 1.2.0.76

netgear/ac2600_firmware < 1.2.0.76

netgear/r6700_firmware < 1.2.0.76

netgear/r6800_firmware < 1.2.0.76

netgear/r6900_firmware < 1.2.0.76

netgear/r7200_firmware < 1.2.0.76

netgear/r7350_firmware < 1.2.0.76

netgear/r7400_firmware < 1.2.0.76

netgear/r7450_firmware < 1.2.0.76

netgear/r6220_firmware < 1.1.0.104

netgear/r6230_firmware < 1.1.0.104

netgear/r6260_firmware < 1.1.0.78

netgear/r6330_firmware < 1.1.0.78

netgear/r6350_firmware < 1.1.0.78

... and 4 more

Timeline

Published Feb 04, 2021

Tracked Since Feb 18, 2026