HOMEVULNERABILITIESCVE-2021-29080
HIGH

CVE-2021-29080

CWE-640Published: March 23, 2021· Updated: Jun 17, 2026

8.1
CVSS v3.1

Official Description

Certain NETGEAR devices are affected by password reset by an unauthenticated attacker. This affects RBK852 before 3.2.10.11, RBK853 before 3.2.10.11, RBR854 before 3.2.10.11, RBR850 before 3.2.10.11, RBS850 before 3.2.10.11, CBR40 before 2.5.0.10, R7000 before 1.0.11.116, R6900P before 1.3.2.126, R7900 before 1.0.4.38, R7960P before 1.4.1.66, R8000 before 1.0.4.66, R7900P before 1.4.1.66, R8000P before 1.4.1.66, RAX75 before 1.0.3.102, RAX80 before 1.0.3.102, and R7000P before 1.3.2.126.

NVD Source

Technical Analysis

CVE-2021-29080 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Vendors & Products

netgear32 product(s)
rbk852 firmwarerbk852rbk853 firmwarerbk853rbr854 firmwarerbr854rbr850 firmwarerbr850rbs850 firmwarerbs850cbr40 firmwarecbr40+20
Source: NVD CPE · 32 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://kb.netgear.com/000063007/Security-Advisory-for-Pre-authentication-Password-Reset-on-Some-Routers-and-WiFi-Systems-PSV-2019-0150
ADVISORYhttps://kb.netgear.com/000063007/Security-Advisory-for-Pre-authentication-Password-Reset-on-Some-Routers-and-WiFi-Systems-PSV-2019-0150

All References (2)

→
https://kb.netgear.com/000063007/Security-Advisory-for-Pre-authentication-Password-Reset-on-Some-Routers-and-WiFi-Systems-PSV-2019-0150Vendor Advisory
→
https://kb.netgear.com/000063007/Security-Advisory-for-Pre-authentication-Password-Reset-on-Some-Routers-and-WiFi-Systems-PSV-2019-0150Vendor Advisory

Quick Facts

CVE IDCVE-2021-29080
CVSS Score8.1 / 10
SeverityHIGH
WeaknessCWE-640
CISA KEVNo
Affected1 vendor(s)
PublishedMar 23, 2021

Related CVEs (CWE-640)

CVE-2025-63314
10.0
CVE-2024-8878
9.8
CVE-2023-7264
9.8
CVE-2024-5404
9.8
CVE-2024-38468
9.8
CVE-2024-8692
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-29080 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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