CVE-2018-21178
Description
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.92, WNDR4300 before 1.0.2.94, WNDR4300v2 before 1.0.0.50, WNDR4500v3 before 1.0.0.50, and WNR2000v5 before 1.0.0.62.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Certain NETGEAR routers are affected by a stack-based buffer overflow exploitable by an authenticated user, leading to potential arbitrary code execution.
Vulnerability
A stack-based buffer overflow exists in certain NETGEAR routers including R7800, R9000, WNDR3700v4, WNDR4300, WNDR4300v2, WNDR4500v3, and WNR2000v5 when running specific firmware versions prior to the fixed releases [1]. The vulnerability is triggered by an authenticated user.
Exploitation
An attacker with valid credentials can exploit this overflow by sending a crafted request to the device. No user interaction is required beyond authentication [1].
Impact
Successful exploitation could allow an attacker to cause a denial of service or execute arbitrary code with elevated privileges, potentially compromising the entire device [1].
Mitigation
NETGEAR has released firmware updates to fix the vulnerability. Affected users should upgrade to the latest firmware: R7800 to 1.0.2.40, R9000 to 1.0.2.52, WNDR3700v4 to 1.0.2.92, WNDR4300 to 1.0.2.94, WNDR4300v2 to 1.0.0.50, WNDR4500v3 to 1.0.0.50, and WNR2000v5 to 1.0.0.62 [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
8- NETGEAR/devicesdescription
- Range: <1.0.0.50
- Range: <1.0.2.92
- Range: <1.0.0.50
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
0No linked articles in our index yet.