CVE-2021-34947

N/A

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.

CVE Details

CVSS v3.1 ScoreN/A

Published5/7/2024

Last Modified8/14/2025

Sourcenvd

Honeypot Sightings0

Affected Products

netgear:d7800netgear:d7800_firmwarenetgear:ex2700netgear:ex2700_firmwarenetgear:ex6100netgear:ex6100_firmwarenetgear:ex6150netgear:ex6150_firmwarenetgear:ex6200netgear:ex6200_firmwarenetgear:ex6250netgear:ex6250_firmwarenetgear:ex6400netgear:ex6400_firmwarenetgear:ex6400v2netgear:ex6400v2_firmwarenetgear:ex6410netgear:ex6410_firmwarenetgear:ex6420netgear:ex6420_firmwarenetgear:ex6500v1netgear:ex6500v1_firmwarenetgear:ex7300netgear:ex7300_firmwarenetgear:ex7300v2netgear:ex7300v2_firmwarenetgear:ex7320netgear:ex7320_firmwarenetgear:ex7700netgear:ex7700_firmwarenetgear:ex8000netgear:ex8000_firmwarenetgear:lbr1020netgear:lbr1020_firmwarenetgear:lbr20netgear:lbr20_firmwarenetgear:r6700axnetgear:r6700ax_firmwarenetgear:r7800netgear:r7800_firmwarenetgear:r8900netgear:r8900_firmwarenetgear:r9000netgear:r9000_firmwarenetgear:rax10netgear:rax10_firmwarenetgear:rax120netgear:rax120_firmwarenetgear:rax120v2netgear:rax120v2_firmwarenetgear:rax70netgear:rax70_firmwarenetgear:rax78netgear:rax78_firmwarenetgear:rbr10netgear:rbr10_firmwarenetgear:rbr20netgear:rbr20_firmwarenetgear:rbr40netgear:rbr40_firmwarenetgear:rbr50netgear:rbr50_firmwarenetgear:rbs10netgear:rbs10_firmwarenetgear:rbs20netgear:rbs20_firmwarenetgear:rbs40netgear:rbs40_firmwarenetgear:rbs50netgear:rbs50_firmwarenetgear:rbs50ynetgear:rbs50y_firmwarenetgear:wn3000rpv2netgear:wn3000rpv2_firmwarenetgear:wnr2000v5netgear:wnr2000v5_firmwarenetgear:xr450netgear:xr450_firmwarenetgear:xr500netgear:xr500_firmwarenetgear:xr700netgear:xr700_firmware

Weaknesses (CWE)

CWE-787

References

https://kb.netgear.com/000064044/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-PSV-2021-0129(zdi-disclosures@trendmicro.com)

https://www.zerodayinitiative.com/advisories/ZDI-21-1116/(zdi-disclosures@trendmicro.com)

https://kb.netgear.com/000064044/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-PSV-2021-0129(af854a3a-2127-422b-91ae-364da2661108)

https://www.zerodayinitiative.com/advisories/ZDI-21-1116/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.