CVE-2021-34947

NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of the soap_block_table file. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-13055.
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:d7800:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:netgear:ex2700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex2700:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:netgear:ex6100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6100:v2:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:netgear:ex6150_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6150:v2:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:netgear:ex6200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6200:v2:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:netgear:ex6250_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6250:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:netgear:ex6400_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6400:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:netgear:ex6400v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6400v2:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND
cpe:2.3:o:netgear:ex6410_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6410:-:*:*:*:*:*:*:*

Configuration 10 (hide)

AND
cpe:2.3:o:netgear:ex6420_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6420:-:*:*:*:*:*:*:*

Configuration 11 (hide)

AND
cpe:2.3:o:netgear:ex6500v1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6500v1:-:*:*:*:*:*:*:*

Configuration 12 (hide)

AND
cpe:2.3:o:netgear:ex7300_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex7300:-:*:*:*:*:*:*:*

Configuration 13 (hide)

AND
cpe:2.3:o:netgear:ex7300v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex7300v2:-:*:*:*:*:*:*:*

Configuration 14 (hide)

AND
cpe:2.3:o:netgear:ex7320_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex7320:-:*:*:*:*:*:*:*

Configuration 15 (hide)

AND
cpe:2.3:o:netgear:ex7700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex7700:-:*:*:*:*:*:*:*

Configuration 16 (hide)

AND
cpe:2.3:o:netgear:ex8000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex8000:-:*:*:*:*:*:*:*

Configuration 17 (hide)

AND
cpe:2.3:o:netgear:lbr1020_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:lbr1020:-:*:*:*:*:*:*:*

Configuration 18 (hide)

AND
cpe:2.3:o:netgear:lbr20_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:lbr20:-:*:*:*:*:*:*:*

Configuration 19 (hide)

AND
cpe:2.3:o:netgear:r6700ax_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6700ax:-:*:*:*:*:*:*:*

Configuration 20 (hide)

AND
cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:*

Configuration 21 (hide)

AND
cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r8900:-:*:*:*:*:*:*:*

Configuration 22 (hide)

AND
cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:*

Configuration 23 (hide)

AND
cpe:2.3:o:netgear:rax10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rax10:-:*:*:*:*:*:*:*

Configuration 24 (hide)

AND
cpe:2.3:o:netgear:rax120_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rax120:-:*:*:*:*:*:*:*

Configuration 25 (hide)

AND
cpe:2.3:o:netgear:rax120v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rax120v2:-:*:*:*:*:*:*:*

Configuration 26 (hide)

AND
cpe:2.3:o:netgear:rax70_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rax70:-:*:*:*:*:*:*:*

Configuration 27 (hide)

AND
cpe:2.3:o:netgear:rax78_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rax78:-:*:*:*:*:*:*:*

Configuration 28 (hide)

AND
cpe:2.3:o:netgear:rbr10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbr10:-:*:*:*:*:*:*:*

Configuration 29 (hide)

AND
cpe:2.3:o:netgear:rbr20_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbr20:-:*:*:*:*:*:*:*

Configuration 30 (hide)

AND
cpe:2.3:o:netgear:rbr40_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbr40:-:*:*:*:*:*:*:*

Configuration 31 (hide)

AND
cpe:2.3:o:netgear:rbr50_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbr50:-:*:*:*:*:*:*:*

Configuration 32 (hide)

AND
cpe:2.3:o:netgear:rbs10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbs10:-:*:*:*:*:*:*:*

Configuration 33 (hide)

AND
cpe:2.3:o:netgear:rbs20_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbs20:-:*:*:*:*:*:*:*

Configuration 34 (hide)

AND
cpe:2.3:o:netgear:rbs40_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbs40:-:*:*:*:*:*:*:*

Configuration 35 (hide)

AND
cpe:2.3:o:netgear:rbs50_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbs50:-:*:*:*:*:*:*:*

Configuration 36 (hide)

AND
cpe:2.3:o:netgear:rbs50y_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbs50y:-:*:*:*:*:*:*:*

Configuration 37 (hide)

AND
cpe:2.3:o:netgear:wn3000rpv2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:wn3000rpv2:-:*:*:*:*:*:*:*

Configuration 38 (hide)

AND
cpe:2.3:o:netgear:wnr2000v5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:wnr2000v5:-:*:*:*:*:*:*:*

Configuration 39 (hide)

AND
cpe:2.3:o:netgear:xr450_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:xr450:-:*:*:*:*:*:*:*

Configuration 40 (hide)

AND
cpe:2.3:o:netgear:xr500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:xr500:-:*:*:*:*:*:*:*

Configuration 41 (hide)

AND
cpe:2.3:o:netgear:xr700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:xr700:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2024-05-07 23:15

Updated : 2025-08-14 01:42


NVD link : CVE-2021-34947

Mitre link : CVE-2021-34947

CVE.ORG link : CVE-2021-34947


JSON object : View

Products Affected

netgear

  • r6700ax
  • rax120
  • rax120v2_firmware
  • r9000
  • rbs10_firmware
  • rbs40
  • ex6410
  • rbr50
  • ex6150_firmware
  • rbs40_firmware
  • ex6400v2_firmware
  • ex6100
  • ex6250
  • ex7300v2_firmware
  • ex6100_firmware
  • rax10
  • d7800_firmware
  • rax70_firmware
  • ex6500v1_firmware
  • ex2700
  • r8900
  • r9000_firmware
  • lbr20_firmware
  • rax78_firmware
  • ex7300v2
  • ex6400
  • xr450_firmware
  • wnr2000v5_firmware
  • rbr40_firmware
  • xr500_firmware
  • ex6200
  • ex6400_firmware
  • ex7320
  • ex7300
  • r7800_firmware
  • rbs50y
  • wnr2000v5
  • rax78
  • rbs20
  • ex6420
  • ex7700
  • ex6200_firmware
  • rbs10
  • rax120_firmware
  • rax10_firmware
  • rbs50
  • wn3000rpv2
  • rbr10
  • ex6410_firmware
  • lbr20
  • rbs50y_firmware
  • ex2700_firmware
  • r8900_firmware
  • r7800
  • ex6250_firmware
  • rbs50_firmware
  • lbr1020_firmware
  • xr500
  • ex8000_firmware
  • r6700ax_firmware
  • rbr10_firmware
  • ex6400v2
  • rbs20_firmware
  • ex6420_firmware
  • ex7300_firmware
  • lbr1020
  • xr450
  • ex7320_firmware
  • rbr50_firmware
  • ex7700_firmware
  • rax120v2
  • ex6500v1
  • rax70
  • wn3000rpv2_firmware
  • rbr20
  • ex6150
  • ex8000
  • xr700
  • d7800
  • xr700_firmware
  • rbr40
  • rbr20_firmware
CWE
CWE-787

Out-of-bounds Write