Description
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.
Published: 2024-05-07
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-21594 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.
History

Tue, 24 Feb 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 14 Aug 2025 06:30:00 +0000

Type Values Removed Values Added
First Time appeared Netgear d7800
Netgear d7800 Firmware
Netgear ex2700
Netgear ex2700 Firmware
Netgear ex6100
Netgear ex6100 Firmware
Netgear ex6150
Netgear ex6150 Firmware
Netgear ex6200
Netgear ex6200 Firmware
Netgear ex6250
Netgear ex6250 Firmware
Netgear ex6400
Netgear ex6400 Firmware
Netgear ex6400v2
Netgear ex6400v2 Firmware
Netgear ex6410
Netgear ex6410 Firmware
Netgear ex6420
Netgear ex6420 Firmware
Netgear ex6500v1
Netgear ex6500v1 Firmware
Netgear ex7300
Netgear ex7300 Firmware
Netgear ex7300v2
Netgear ex7300v2 Firmware
Netgear ex7320
Netgear ex7320 Firmware
Netgear ex7700
Netgear ex7700 Firmware
Netgear ex8000
Netgear ex8000 Firmware
Netgear lbr1020
Netgear lbr1020 Firmware
Netgear lbr20
Netgear lbr20 Firmware
Netgear r6700ax
Netgear r6700ax Firmware
Netgear r7800 Firmware
Netgear r8900
Netgear r8900 Firmware
Netgear r9000
Netgear r9000 Firmware
Netgear rax10
Netgear rax10 Firmware
Netgear rax120
Netgear rax120 Firmware
Netgear rax120v2
Netgear rax120v2 Firmware
Netgear rax70
Netgear rax70 Firmware
Netgear rax78
Netgear rax78 Firmware
Netgear rbr10
Netgear rbr10 Firmware
Netgear rbr20
Netgear rbr20 Firmware
Netgear rbr40
Netgear rbr40 Firmware
Netgear rbr50
Netgear rbr50 Firmware
Netgear rbs10
Netgear rbs10 Firmware
Netgear rbs20
Netgear rbs20 Firmware
Netgear rbs40
Netgear rbs40 Firmware
Netgear rbs50
Netgear rbs50 Firmware
Netgear rbs50y
Netgear rbs50y Firmware
Netgear wn3000rpv2
Netgear wn3000rpv2 Firmware
Netgear wnr2000v5
Netgear wnr2000v5 Firmware
Netgear xr450
Netgear xr450 Firmware
Netgear xr500
Netgear xr500 Firmware
Netgear xr700
Netgear xr700 Firmware
CPEs cpe:2.3:h:netgear:d7800:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex2700:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6100:v2:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6150:v2:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6200:v2:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6250:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6400:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6400v2:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6410:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6420:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex6500v1:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex7300:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex7300v2:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex7320:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex7700:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ex8000:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:lbr1020:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:lbr20:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6700ax:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r8900:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rax10:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rax120:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rax120v2:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rax70:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rax78:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbr10:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbr20:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbr40:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbr50:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbs10:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbs20:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbs40:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbs50:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:rbs50y:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:wn3000rpv2:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:wnr2000v5:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:xr450:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:xr500:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:xr700:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex2700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex6100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex6150_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex6200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex6250_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex6400_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex6400v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex6410_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex6420_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex6500v1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex7300_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex7300v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex7320_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex7700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex8000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:lbr1020_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:lbr20_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6700ax_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax120_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax120v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax70_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax78_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbr10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbr20_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbr40_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbr50_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbs10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbs20_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbs40_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbs50_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbs50y_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wn3000rpv2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wnr2000v5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:xr450_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:xr500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:xr700_firmware:*:*:*:*:*:*:*:*
Vendors & Products Netgear d7800
Netgear d7800 Firmware
Netgear ex2700
Netgear ex2700 Firmware
Netgear ex6100
Netgear ex6100 Firmware
Netgear ex6150
Netgear ex6150 Firmware
Netgear ex6200
Netgear ex6200 Firmware
Netgear ex6250
Netgear ex6250 Firmware
Netgear ex6400
Netgear ex6400 Firmware
Netgear ex6400v2
Netgear ex6400v2 Firmware
Netgear ex6410
Netgear ex6410 Firmware
Netgear ex6420
Netgear ex6420 Firmware
Netgear ex6500v1
Netgear ex6500v1 Firmware
Netgear ex7300
Netgear ex7300 Firmware
Netgear ex7300v2
Netgear ex7300v2 Firmware
Netgear ex7320
Netgear ex7320 Firmware
Netgear ex7700
Netgear ex7700 Firmware
Netgear ex8000
Netgear ex8000 Firmware
Netgear lbr1020
Netgear lbr1020 Firmware
Netgear lbr20
Netgear lbr20 Firmware
Netgear r6700ax
Netgear r6700ax Firmware
Netgear r7800 Firmware
Netgear r8900
Netgear r8900 Firmware
Netgear r9000
Netgear r9000 Firmware
Netgear rax10
Netgear rax10 Firmware
Netgear rax120
Netgear rax120 Firmware
Netgear rax120v2
Netgear rax120v2 Firmware
Netgear rax70
Netgear rax70 Firmware
Netgear rax78
Netgear rax78 Firmware
Netgear rbr10
Netgear rbr10 Firmware
Netgear rbr20
Netgear rbr20 Firmware
Netgear rbr40
Netgear rbr40 Firmware
Netgear rbr50
Netgear rbr50 Firmware
Netgear rbs10
Netgear rbs10 Firmware
Netgear rbs20
Netgear rbs20 Firmware
Netgear rbs40
Netgear rbs40 Firmware
Netgear rbs50
Netgear rbs50 Firmware
Netgear rbs50y
Netgear rbs50y Firmware
Netgear wn3000rpv2
Netgear wn3000rpv2 Firmware
Netgear wnr2000v5
Netgear wnr2000v5 Firmware
Netgear xr450
Netgear xr450 Firmware
Netgear xr500
Netgear xr500 Firmware
Netgear xr700
Netgear xr700 Firmware

Subscriptions

Netgear D7800 D7800 Firmware Ex2700 Ex2700 Firmware Ex6100 Ex6100 Firmware Ex6150 Ex6150 Firmware Ex6200 Ex6200 Firmware Ex6250 Ex6250 Firmware Ex6400 Ex6400 Firmware Ex6400v2 Ex6400v2 Firmware Ex6410 Ex6410 Firmware Ex6420 Ex6420 Firmware Ex6500v1 Ex6500v1 Firmware Ex7300 Ex7300 Firmware Ex7300v2 Ex7300v2 Firmware Ex7320 Ex7320 Firmware Ex7700 Ex7700 Firmware Ex8000 Ex8000 Firmware Lbr1020 Lbr1020 Firmware Lbr20 Lbr20 Firmware R6700ax R6700ax Firmware R7800 R7800 Firmware R8900 R8900 Firmware R9000 R9000 Firmware Rax10 Rax10 Firmware Rax120 Rax120 Firmware Rax120v2 Rax120v2 Firmware Rax70 Rax70 Firmware Rax78 Rax78 Firmware Rbr10 Rbr10 Firmware Rbr20 Rbr20 Firmware Rbr40 Rbr40 Firmware Rbr50 Rbr50 Firmware Rbs10 Rbs10 Firmware Rbs20 Rbs20 Firmware Rbs40 Rbs40 Firmware Rbs50 Rbs50 Firmware Rbs50y Rbs50y Firmware Wn3000rpv2 Wn3000rpv2 Firmware Wnr2000v5 Wnr2000v5 Firmware Xr450 Xr450 Firmware Xr500 Xr500 Firmware Xr700 Xr700 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: zdi

Published:

Updated: 2024-08-04T00:26:55.741Z

Reserved: 2021-06-17T19:27:05.647Z

Link: CVE-2021-34947

cve-icon Vulnrichment

Updated: 2024-08-04T00:26:55.741Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-07T23:15:07.653

Modified: 2025-08-14T01:42:44.800

Link: CVE-2021-34947

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-13T11:32:26Z

Weaknesses