VULNERABILITY INTELLIGENCE

CVE-2021-34980

CVSS score8.8 HIGH
EPSS probability1.37%
CISA KEVNot currently listed
Published2022-01-13
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the setupwizard.cgi page. When parsing the SOAP_LOGIN_TOKEN environment variable, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-14107.

Weakness classification

  • zdi-disclosures@trendmicro.com: CWE-121
  • nvd@nist.gov: CWE-787

Primary references