CVE-2018-21216
Description
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.67, D6000 before 1.0.0.67, D6100 before 1.0.0.56, and R6100 before 1.0.1.20.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
NETGEAR D3600, D6000, D6100, and R6100 routers are vulnerable to a pre-authentication buffer overflow allowing remote code execution.
Vulnerability
A buffer overflow vulnerability exists in certain NETGEAR routers and gateways, affecting D3600 (firmware before 1.0.0.67), D6000 (before 1.0.0.67), D6100 (before 1.0.0.56), and R6100 (before 1.0.1.20). The issue occurs before authentication, meaning no credentials are required to reach the vulnerable code path [1].
Exploitation
An unauthenticated attacker on the same local network can exploit this vulnerability by sending a specially crafted packet to the affected device. No user interaction is required [1].
Impact
Successful exploitation allows the attacker to execute arbitrary code with high privileges, leading to complete compromise of confidentiality, integrity, and availability of the device [1].
Mitigation
NETGEAR has released firmware updates to fix this issue: D3600 and D6000 to version 1.0.0.67, D6100 to version 1.0.0.56, and R6100 to version 1.0.1.20. Users should download and install the latest firmware from NETGEAR Support [1].
AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
4Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
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