CVE Tools
Sign in

CVE-2021-34977

Published: Jan 13, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-288
NVD MITRE
8.8CVSSHIGH
EPSS Score
1.1%
Top 37.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R7000 1.0.11.116_10.2.100 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of SOAP requests. The issue results from the lack of proper authentication verification before performing a password reset. An attacker can leverage this vulnerability to reset the admin password. Was ZDI-CAN-13483.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-288CWE-287

Affected Products

R7000NETGEARNetworking Infrastructure
r7000 firmwarenetgearNetworking Infrastructure
D7000v2NETGEARNetworking Infrastructure
D6400NETGEARNetworking Infrastructure
R6700v3NETGEARNetworking Infrastructure
netgearcommercialUSNetworking Infrastructureaka net gear
and 7 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://www.zerodayinitiative.com/advisories/ZDI-21-1239/
zerodayinitiative.com
https://kb.netgear.com/000064046/Security-Advisory-for-Authentication-Bypass-on-Some-Routers-and-DSL-Modem-Routers-PSV-2021-0134
kb.netgear.com
https://www.zerodayinitiative.com/advisories/ZDI-21-1239/
zerodayinitiative.com

Timeline

Published
Jan 13, 2022
Last Updated
Nov 21, 2024

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-34977 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows