Vulnerability Monitor

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CVE-2019-20747

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.58, D7800 before 1.0.1.40, R7500v2 before 1.0.3.34, R7800 before 1.0.2.52, R8900 before 1.0.4.2, R9000 before 1.0.3.16, RAX120 before 1.0.0.74, RBK20 before 2.3.0.22, RBR20 before 2.3.0.22, RBS20 before 2.3.0.22, RBK50 before 2.3.0.22, RBR50 before 2.3.0.22, RBS50 before 2.3.0.22, RBK40 before 2.3.0.22, RBS40 before 2.3.0.22, SRK60 before 2.2.0.64, SRR60 before 2.2.0.64, SRS60 before 2.2.0.64, WNDR3700v4 before 1.0.2.102, WNDR4300 before 1.0.2.104, WNDR4300v2 before 1.0.0.56, WNDR4500v3 before 1.0.0.56, and WNR2000v5 before 1.0.0.66.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.8, indicating it requires adjacent network access with relatively low complexity without requiring user interaction . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 44 products from netgear, from netgear, from netgear and 41 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2020-04-16T21:15:12.817

Last Modified

2024-11-21T04:39:15.360

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.8 (MEDIUM)

CVSSv2 Vector

AV:A/AC:L/Au:S/C:P/I:P/A:P

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: LOW
  • Authentication: SINGLE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

5.1

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System netgear d6100_firmware < 1.0.0.58 Yes
Hardware netgear d6100 - No
Operating System netgear d7800_firmware < 1.0.1.40 Yes
Hardware netgear d7800 - No
Operating System netgear r7500_firmware < 1.0.3.34 Yes
Hardware netgear r7500 v2 No
Operating System netgear r7800_firmware < 1.0.2.52 Yes
Hardware netgear r7800 - No
Operating System netgear r8900_firmware < 1.0.4.2 Yes
Hardware netgear r8900 - No
Operating System netgear r9000_firmware < 1.0.3.16 Yes
Hardware netgear r9000 - No
Operating System netgear rax120_firmware < 1.0.0.74 Yes
Hardware netgear rax120 - No
Operating System netgear rbk20_firmware < 2.3.0.22 Yes
Hardware netgear rbk20 - No
Operating System netgear rbr20_firmware < 2.3.0.22 Yes
Hardware netgear rbr20 - No
Operating System netgear rbs20_firmware < 2.3.0.22 Yes
Hardware netgear rbs20 - No
Operating System netgear rbk50_firmware < 2.3.0.22 Yes
Hardware netgear rbk50 - No
Operating System netgear rbr50_firmware < 2.3.0.22 Yes
Hardware netgear rbr50 - No
Operating System netgear rbs50_firmware < 2.3.0.22 Yes
Hardware netgear rbs50 - No
Operating System netgear rbk40_firmware < 2.3.0.22 Yes
Hardware netgear rbk40 - No
Operating System netgear rbs40_firmware < 2.3.0.22 Yes
Hardware netgear rbs40 - No
Operating System netgear srk60_firmware < 2.2.0.64 Yes
Hardware netgear srk60 - No
Operating System netgear srr60_firmware < 2.2.0.64 Yes
Hardware netgear srr60 - No
Operating System netgear srs60_firmware < 2.2.0.64 Yes
Hardware netgear srs60 - No
Operating System netgear wndr3700_firmware < 1.0.2.102 Yes
Hardware netgear wndr3700 v4 No
Operating System netgear wndr4300_firmware < 1.0.2.104 Yes
Hardware netgear wndr4300 - No
Operating System netgear wndr4300_firmware < 1.0.0.56 Yes
Hardware netgear wndr4300 v2 No
Operating System netgear wndr4500_firmware < 1.0.0.56 Yes
Hardware netgear wndr4500 v3 No
Operating System netgear wnr2000_firmware < 1.0.0.66 Yes
Hardware netgear wnr2000 v5 No
References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For netgear's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.