CVE-2026-62655 in RBR860
Summary
by MITRE • 07/14/2026
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.
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Analysis
by VulDB Data Team • 07/14/2026
This vulnerability affects specific NETGEAR Orbi wireless router models and represents a denial of service condition that can be exploited by unauthorized users to disrupt network operations. The flaw manifests as a condition where malicious actors can trigger device instability leading to unexpected restarts or complete service unavailability. Such vulnerabilities fall under the category of improper error handling and resource management issues that can be categorized as CWE-400, which deals with excessive Resource Consumption, and CWE-1321, which addresses Improper Handling of Exceptional Conditions. The impact extends beyond simple network disruption as it affects the reliability and availability of home and small office networks where these devices serve as primary connectivity points.
The technical nature of this vulnerability suggests that the affected NETGEAR Orbi models may not properly validate input parameters or handle exceptional conditions during normal operation, allowing attackers to craft specific inputs or sequences that cause the device firmware to enter an unstable state. This could involve buffer overflows, memory corruption issues, or improper state management within the device's operating system or network services. From a cybersecurity perspective, this vulnerability presents an attractive target for threat actors seeking to disrupt network connectivity as it requires minimal technical expertise to exploit and can cause significant operational impact for users who depend on continuous network availability.
The operational consequences of this vulnerability are substantial as it directly impacts business continuity and user productivity in environments where these routers serve critical network infrastructure. Network administrators and end users may experience unexpected downtime, loss of connectivity, and potential data transmission failures during the periods when devices are restarting or unresponsive. This type of vulnerability can be particularly problematic for remote work environments or businesses that rely heavily on stable network connections for their operations.
Mitigation strategies should include immediate firmware updates from NETGEAR to address the underlying implementation flaws, proper network segmentation to limit access to administrative interfaces, and implementing robust monitoring solutions to detect unusual restart patterns or service disruptions. Organizations should also consider deploying intrusion detection systems that can identify potential exploitation attempts targeting these specific device models. The vulnerability highlights the importance of secure coding practices and thorough testing of network device firmware, particularly in consumer-grade networking equipment where security updates may not be regularly applied by end users. This type of issue is commonly addressed through the application of defensive programming techniques and comprehensive input validation as outlined in the software security principles of the OWASP Top Ten and MITRE ATT&CK framework's methodology for identifying and mitigating device-level vulnerabilities that impact availability services.