Vulnerability Database

289,697

Total vulnerabilities in the database

CVE-2021-27253

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR Nighthawk R7800. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of the rc_service parameter provided to apply_bind.cgi. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12303.

  • Published: Apr 14, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-27253
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.8
  • AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 8.3
  • AV:A/AC:L/Au:N/C:C/I:C/A:C

CWEs:

Software From Fixed in
netgear / br200_firmware - 5.10.0.5
netgear / br500_firmware - 5.10.0.5
netgear / d7800_firmware - 1.0.1.60
netgear / ex6100v2_firmware - 1.0.1.98
netgear / ex6150_firmware - 1.0.1.98
netgear / ex6250_firmware - 1.0.0.134
netgear / ex6400_firmware - 1.0.2.158
netgear / ex6400v2_firmware - 1.0.0.134
netgear / ex6410_firmware - 1.0.0.134
netgear / ex6420_firmware - 1.0.0.134
netgear / ex7300_firmware - 1.0.2.158
netgear / ex7300v2_firmware - 1.0.0.134
netgear / ex7320_firmware - 1.0.0.134
netgear / ex7700_firmware - 1.0.0.216
netgear / ex8000_firmware - 1.0.1.232
netgear / lbr20_firmware - 2.6.3.50
netgear / r7800_firmware - 1.0.2.80
netgear / r8900_firmware - 1.0.5.28
netgear / r9000_firmware - 1.0.5.28
netgear / rbk12_firmware - 2.7.2.104
netgear / rbk13_firmware - 2.7.2.104
netgear / rbk14_firmware - 2.7.2.104
netgear / rbk15_firmware - 2.7.2.104
netgear / rbk20_firmware - 2.6.2.104
netgear / rbk23_firmware - 2.7.2.104
netgear / rbk40_firmware - 2.6.2.104
netgear / rbk43_firmware - 2.6.2.104
netgear / rbk43s_firmware - 2.6.2.104
netgear / rbk44_firmware - 2.6.2.104
netgear / rbk50_firmware - 2.7.2.104
netgear / rbk53_firmware - 2.7.2.104
netgear / rbr10_firmware - 2.6.2.104
netgear / rbr20_firmware - 2.6.2.104
netgear / rbr40_firmware - 2.6.2.104
netgear / rbr50_firmware - 2.7.2.104
netgear / rbs10_firmware - 2.6.2.104
netgear / rbs20_firmware - 2.6.2.104
netgear / rbs40_firmware - 2.6.2.104
netgear / rbs50_firmware - 2.7.2.104
netgear / rbs50y_firmware - 2.6.2.104
netgear / xr450_firmware - 2.3.2.114
netgear / xr500_firmware - 2.3.2.114
netgear / xr700_firmware - 1.0.1.38