VULNERABILITY INTELLIGENCE

CVE-2021-27257

CVSS score6.5 MEDIUM
EPSS probability0.32%
CISA KEVNot currently listed
Published2021-03-05
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of NETGEAR R7800 firmware version 1.0.2.76. Authentication is not required to exploit this vulnerability. The specific flaw exists within the downloading of files via FTP. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-12362.

Weakness classification

  • zdi-disclosures@trendmicro.com: CWE-295

Primary references