CVE-2021-27254

HIGH

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.

CVSS v3 vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected routers (1)

Vendor	Model	Matched via	Affected versions	Fixed in	Patch?
Netgear	Netgear Nighthawk R7800	—	—	—	No

External references

• NIST NVD
• MITRE CVE