CVE-2026-1668 in SG2008P 3.2x
Summary
by MITRE • 03/13/2026
The web interface on multiple Omada switches does not adequately validate certain external inputs, which may lead to out-of-bound memory access when processing crafted requests. Under specific conditions, this flaw may result in unintended command execution.<br>An unauthenticated attacker with network access to the affected interface may cause memory corruption, service instability, or information disclosure. Successful exploitation may allow remote code execution or denial-of-service.
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Analysis
by VulDB Data Team • 03/20/2026
The vulnerability identified as CVE-2026-1668 affects the web interface of multiple Omada switch models, representing a critical security flaw that stems from insufficient input validation mechanisms. This weakness resides within the device's web management interface, which processes external inputs without proper sanitization or bounds checking. The vulnerability manifests when the system encounters crafted requests that exceed expected parameter boundaries, leading to out-of-bound memory access conditions that can compromise system integrity. The flaw operates at the application layer and specifically targets the switch's web server component that handles user requests and administrative functions. This type of vulnerability falls under the CWE-125 category of out-of-bounds read conditions, which are particularly dangerous because they can lead to memory corruption and potentially arbitrary code execution.
The technical exploitation of this vulnerability requires an unauthenticated attacker with network access to the affected switch's web interface. The attack vector operates through network-based communication protocols that the switch uses to handle web requests, making it accessible from external networks. When a maliciously crafted request is processed, the system's inadequate validation allows memory access beyond allocated boundaries, potentially causing buffer overflows or memory corruption. This memory corruption can manifest in various ways including service instability, information disclosure, or more critically, remote code execution capabilities. The vulnerability's impact extends beyond simple denial-of-service conditions as the memory corruption can be leveraged to execute arbitrary commands on the affected device. This represents a significant security risk because it allows attackers to gain unauthorized control over network infrastructure devices that are critical for network operations and security.
The operational impact of CVE-2026-1668 is severe for organizations relying on Omada switches for network management and security. Successful exploitation can result in complete compromise of the affected switch, allowing attackers to modify network configurations, redirect traffic, or establish persistent access points within the network. The vulnerability's potential for remote code execution means that attackers can install backdoors, modify firmware, or use the compromised device as a pivot point for attacks against other network segments. Network administrators may experience service disruptions due to the instability caused by memory corruption, leading to unexpected outages and potential data loss. Information disclosure capabilities could expose sensitive network configurations, user credentials, or other confidential data stored on or accessible through the compromised switch. The attack surface is particularly concerning given that the vulnerability affects multiple switch models, suggesting a widespread impact across different hardware platforms and potentially affecting various network environments.
Organizations should implement immediate mitigations to protect against exploitation of CVE-2026-1668, including network segmentation to isolate affected switches from critical network segments and implementing firewall rules to restrict access to the switch web interfaces. The most effective long-term solution involves applying vendor-provided security patches and firmware updates that address the input validation deficiencies. Network monitoring should be enhanced to detect unusual traffic patterns or malformed requests that might indicate exploitation attempts. Security teams should also consider implementing intrusion detection systems with signatures specific to this vulnerability to provide early warning capabilities. The ATT&CK framework categorizes this vulnerability under the T1059 technique for command and scripting interpreter, as successful exploitation would likely involve executing commands on the compromised device. Additionally, the vulnerability aligns with T1190 network block denial of service attacks and T1083 file and directory discovery techniques that attackers might employ to explore the compromised system. Regular vulnerability assessments and penetration testing should be conducted to identify similar input validation weaknesses in other network infrastructure components, ensuring comprehensive protection against similar attack vectors.