CVE-2026-20185— Cisco SG350 and SG350X Series Managed Switches SNMP Denial of Service Vunerability

Cisco SG350 and SG350X Series Managed Switches SNMP Denial of Service Vunerability

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco 350 Series Managed Switches (SG350) and Cisco 350X Series Stackable Managed Switches (SG350X) firmware could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.  This vulnerability is due to improper error handling when parsing response data for a specific SNMP request. An attacker could exploit this vulnerability by sending a specific SNMP request to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition. This vulnerability affects SNMP versions 1, 2c, and 3. To exploit this vulnerability through SNMPv2c or earlier, the attacker must know a valid read-write or read-only SNMP community string for the affected system. To exploit this vulnerability through SNMPv3, the attacker must have valid SNMP user credentials for the affected system.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

堆缓冲区溢出

Cisco 350X Series和Cisco 350 Series 安全漏洞

Cisco 350X Series和Cisco 350 Series都是美国思科（Cisco）公司的一系列企业级可堆叠以太网交换机。 Cisco 350X Series和Cisco 350 Series存在安全漏洞，该漏洞源于解析特定SNMP请求响应数据时错误处理不当，可能导致经过身份验证的远程攻击者发送特定SNMP请求导致设备意外重新加载，造成拒绝服务。

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