CVE-2026-62655: CWE-121 Stack-based buffer overflow in NETGEAR RBR860
A security flaw was found in certain NETGEAR Orbi models that could allow an unauthorized user to cause the device to stop responding or restart unexpectedly, disrupting network connectivity and making the device temporarily unavailable.
AI Analysis
Technical Summary
This vulnerability (CWE-121) involves a stack-based buffer overflow in the NETGEAR Orbi RBR860 device. Exploitation allows an unauthenticated attacker to trigger a denial of service condition by causing the device to crash or reboot, leading to temporary network disruption. The CVSS 4.0 base score is 5.7, reflecting medium severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on availability. No vendor advisory or patch information is currently available.
Potential Impact
An attacker can cause the affected NETGEAR RBR860 device to become temporarily unavailable by forcing it to stop responding or restart unexpectedly. This results in denial of service and disruption of network connectivity for users relying on the device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, monitor vendor communications for updates. No official mitigation or workaround has been provided at this time.
CVE-2026-62655: CWE-121 Stack-based buffer overflow in NETGEAR RBR860
Description
A security flaw was found in certain NETGEAR Orbi models that could allow an unauthorized user to cause the device to stop responding or restart unexpectedly, disrupting network connectivity and making the device temporarily unavailable.
CVSS v4.0
Score 5.7medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-121) involves a stack-based buffer overflow in the NETGEAR Orbi RBR860 device. Exploitation allows an unauthenticated attacker to trigger a denial of service condition by causing the device to crash or reboot, leading to temporary network disruption. The CVSS 4.0 base score is 5.7, reflecting medium severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on availability. No vendor advisory or patch information is currently available.
Potential Impact
An attacker can cause the affected NETGEAR RBR860 device to become temporarily unavailable by forcing it to stop responding or restart unexpectedly. This results in denial of service and disruption of network connectivity for users relying on the device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, monitor vendor communications for updates. No official mitigation or workaround has been provided at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- NETGEAR
- Date Reserved
- 2026-07-14T16:31:02.508Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a567a1068715ace43f63966
Added to database: 07/14/2026, 18:04:00 UTC
Last enriched: 07/21/2026, 18:47:13 UTC
Last updated: 08/16/2026, 00:41:15 UTC
Views: 92
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