Vulnerability Monitor

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CVE-2021-45637


Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects R6260 before 1.1.0.76, R6800 before 1.2.0.62, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, R7450 before 1.2.0.62, AC2100 before 1.2.0.62, AC2400 before 1.2.0.62, and AC2600 before 1.2.0.62.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.3, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and limited availability for affected systems. Impacting 16 products from netgear, from netgear, from netgear and 13 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, 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

2021-12-26T01:15:19.507

Last Modified

2024-11-21T06:32:44.553

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.3 (HIGH)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-787

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System netgear r6260_firmware < 1.1.0.76 Yes
Hardware netgear r6260 - No
Operating System netgear r6800_firmware < 1.2.0.62 Yes
Hardware netgear r6800 - No
Operating System netgear r6700v2_firmware < 1.2.0.62 Yes
Hardware netgear r6700v2 - No
Operating System netgear r6900v2_firmware < 1.2.0.62 Yes
Hardware netgear r6900v2 - No
Operating System netgear r7450_firmware < 1.2.0.62 Yes
Hardware netgear r7450 - No
Operating System netgear ac2100_firmware < 1.2.0.62 Yes
Hardware netgear ac2100 - No
Operating System netgear ac2400_firmware < 1.2.0.62 Yes
Hardware netgear ac2400 - No
Operating System netgear ac2600_firmware < 1.2.0.62 Yes
Hardware netgear ac2600 - 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.