Vulnerability Database

289,697

Total vulnerabilities in the database

CVE-2021-27257

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.

  • Published: Mar 5, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-27257
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.5
  • AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v2:

  • Severity: Low
  • Score: 3.3
  • AV:A/AC:L/Au:N/C:N/I:P/A:N
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 / ex6150v2_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