Home/CVE/Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects R7800 before 1.0.
CVE

CVE-2021-45623

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects R7800 before 1.0.

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects R7800 before 1.0.2.74, R9000 before 1.0.5.2, and XR500 before 2.3.2.66.

HIGH · CVSS 8.3 EPSS 0.01614
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
▤

Affected Products & Versions

3
netgear r7800 firmware< 1.0.2.74
netgear r9000 firmware< 1.0.5.2
netgear xr500 firmware< 2.3.2.66
▣

Scoring & Timeline

8.3
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Dec 2021 · 01:15 AM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://kb.netgear.com/000064449/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-PSV-2019-0203PatchVendor Advisory
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