CVE-2021-34947

🗓️ 07 May 2024 22:54:22Reported by zdiType

NETGEAR R7800 routers Out-Of-Bounds Write Remote Code Execution Vulnerabilit

Reporter	Title	Published	Views	Family All 9
BDU FSTEC	The vulnerability of the embedded software of NETGEAR R6700AX, NETGEAR R7800, NETGEAR R8900, NETGEAR R9000, NETGEAR RAX10, NETGEAR RAX120, NETGEAR RAX120v2, NETGEAR RAX70, NETGEAR RAX78, and NETGEAR XR700 lies in the ability to write data beyond the buffer, allowing an attacker to execute arbitrary code.	10 Nov 202100:00	–	bdu_fstec
CNNVD	NETGEAR R7800 缓冲区错误漏洞	28 Sep 202100:00	–	cnnvd
Cvelist	CVE-2021-34947 NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability	7 May 202422:54	–	cvelist
EUVD	EUVD-2021-21594	7 Oct 202500:30	–	euvd
NVD	CVE-2021-34947	7 May 202423:15	–	nvd
OSV	CVE-2021-34947	7 May 202423:15	–	osv
Positive Technologies	PT-2021-4644 · NetGear · Netgear R8900 +9	26 May 202100:00	–	ptsecurity
Vulnrichment	CVE-2021-34947 NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability	7 May 202422:54	–	vulnrichment
Zero Day Initiative	NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability	28 Sep 202100:00	–	zdi

NVD

Vulners

Vulnrichment

Node

netgear d7800_firmwareRange<1.0.1.64

AND

netgear d7800Match-

Node

netgear ex2700_firmwareRange<1.0.1.66

AND

netgear ex2700Match-

Node

netgear ex6100_firmwareRange<1.0.1.106

AND

netgear ex6100Matchv2

Node

netgear ex6150_firmwareRange<1.0.1.106

AND

netgear ex6150Matchv2

Node

netgear ex6200_firmwareRange<1.0.1.86

AND

netgear ex6200Matchv2

Node

netgear ex6250_firmwareRange<1.0.0.146

AND

netgear ex6250Match-

Node

netgear ex6400_firmwareRange<1.0.2.164

AND

netgear ex6400Match-

Node

netgear ex6400v2_firmwareRange<1.0.0.146

AND

netgear ex6400v2Match-

Node

netgear ex6410_firmwareRange<1.0.0.146

AND

netgear ex6410Match-

Node

netgear ex6420_firmwareRange<1.0.0.146

AND

netgear ex6420Match-

Node

netgear ex6500v1_firmwareRange<1.0.0.146

AND

netgear ex6500v1Match-

Node

netgear ex7300_firmwareRange<1.0.2.164

AND

netgear ex7300Match-

Node

netgear ex7300v2_firmwareRange<1.0.0.146

AND

netgear ex7300v2Match-

Node

netgear ex7320_firmwareRange<1.0.0.146

AND

netgear ex7320Match-

Node

netgear ex7700_firmwareRange<1.0.0.222

AND

netgear ex7700Match-

Node

netgear ex8000_firmwareRange<1.0.1.238

AND

netgear ex8000Match-

Node

netgear lbr1020_firmwareRange<2.6.5.32

AND

netgear lbr1020Match-

Node

netgear lbr20_firmwareRange<2.6.5.32

AND

netgear lbr20Match-

Node

netgear r6700ax_firmwareRange<1.0.5.108

AND

netgear r6700axMatch-

Node

netgear r7800_firmwareRange<1.0.2.84

AND

netgear r7800Match-

Node

netgear r8900_firmwareRange<1.0.5.36

AND

netgear r8900Match-

Node

netgear r9000_firmwareRange<1.0.5.36

AND

netgear r9000Match-

Node

netgear rax10_firmwareRange<1.0.5.108

AND

netgear rax10Match-

Node

netgear rax120_firmwareRange<1.2.2.24

AND

netgear rax120Match-

Node

netgear rax120v2_firmwareRange<1.2.2.24

AND

netgear rax120v2Match-

Node

netgear rax70_firmwareRange<1.0.5.108

AND

netgear rax70Match-

Node

netgear rax78_firmwareRange<1.0.5.108

AND

netgear rax78Match-

Node

netgear rbr10_firmwareRange<2.7.4.24

AND

netgear rbr10Match-

Node

netgear rbr20_firmwareRange<2.7.4.24

AND

netgear rbr20Match-

Node

netgear rbr40_firmwareRange<2.7.4.24

AND

netgear rbr40Match-

Node

netgear rbr50_firmwareRange<2.7.4.24

AND

netgear rbr50Match-

Node

netgear rbs10_firmwareRange<2.7.4.24

AND

netgear rbs10Match-

Node

netgear rbs20_firmwareRange<2.7.4.24

AND

netgear rbs20Match-

Node

netgear rbs40_firmwareRange<2.7.4.24

AND

netgear rbs40Match-

Node

netgear rbs50_firmwareRange<2.7.4.24

AND

netgear rbs50Match-

Node

netgear rbs50y_firmwareRange<2.7.4.12

AND

netgear rbs50yMatch-

Node

netgear wn3000rpv2_firmwareRange<1.0.0.88

AND

netgear wn3000rpv2Match-

Node

netgear wnr2000v5_firmwareRange<1.0.0.78

AND

netgear wnr2000v5Match-

Node

netgear xr450_firmwareRange<2.3.2.130

AND

netgear xr450Match-

Node

netgear xr500_firmwareRange<2.3.2.130

AND

netgear xr500Match-

Node

netgear xr700_firmwareRange<1.0.1.44

AND

netgear xr700Match-

[
  {
    "vendor": "NETGEAR",
    "product": "R7800",
    "versions": [
      {
        "version": "1.0.2.82",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  }
]

Source	Link
kb	www.kb.netgear.com/000064044/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-PSV-2021-0129
zerodayinitiative	www.zerodayinitiative.com/advisories/ZDI-21-1116/

14 Aug 2025 01:42Current

9High risk

Vulners AI Score9

CVSS 38.8

EPSS0.00388

SSVC

CWE-787