VULNERABILITY INTELLIGENCE

CVE-2021-27254

CVSS score8.8 HIGH
EPSS probability0.52%
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:H/I:H/A:H

Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R7800. Authentication is not required to exploit this vulnerability. The specific flaw exists within the apply_save.cgi endpoint. This issue results from the use of hard-coded encryption key. An attacker can leverage this vulnerability to execute arbitrary code in the context of root. Was ZDI-CAN-12287.

Weakness classification

  • zdi-disclosures@trendmicro.com: CWE-259
  • nvd@nist.gov: CWE-798

Primary references