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01 Record

CVE-2021-45611

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects DC112A before 1.0.0.52, R6400 before 1.0.1.68, RAX200 before 1.0.3.106, WNDR3400v3 before

CriticalPUBLISHEDCNA: mitre
CNA base score9.6 CVSS v3.xCVSS:3.1/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:C/UI:N

02 Description

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects DC112A before 1.0.0.52, R6400 before 1.0.1.68, RAX200 before 1.0.3.106, WNDR3400v3 before

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.23% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 68.6% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-12-26 00:36Z4 YR AGO
Last updated
2024-08-04 04:47Z2 YR AGO
Reserved
2021-12-25
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Critical (CVSS 9.6)
CNA CVSS vector
CVSS:3.1/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:C/UI:N
Weaknesses
  • CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
Data version
5.1
Document digest
5bfd13cbc584eb96130b3e702d63292e3c4cc899c071932a052b339392512c51

05 Affected products

VendorProductVersionsPlatforms
netgeardc112aNot specified—
netgeardc112a_firmwareNot specified—
netgearr6400Not specified—
netgearr6400_firmwareNot specified—
netgearr8300Not specified—
netgearr8300_firmwareNot specified—
netgearr8500Not specified—
netgearr8500_firmwareNot specified—
netgearrax200Not specified—
netgearrax200_firmwareNot specified—
netgearrax75Not specified—
netgearrax75_firmwareNot specified—
netgearrax80Not specified—
netgearrax80_firmwareNot specified—
netgearwndr3400v3Not specified—
netgearwndr3400v3_firmwareNot specified—
netgearxr300Not specified—
netgearxr300_firmwareNot specified—

06 References