9.8
CVSSv3

CVE-2021-34730

Published: 18/08/2021 Updated: 07/11/2023
CVSS v2 Base Score: 10 | Impact Score: 10 | Exploitability Score: 10
CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9
VMScore: 890
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Summary

A vulnerability in the Universal Plug-and-Play (UPnP) service of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote malicious user to execute arbitrary code or cause an affected device to restart unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of incoming UPnP traffic. An attacker could exploit this vulnerability by sending a crafted UPnP request to an affected device. A successful exploit could allow the malicious user to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a DoS condition. Cisco has not released software updates that address this vulnerability.

Vulnerability Trend

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cisco application extension platform 1.0.3.55

cisco rv110w_wireless-n_vpn_firewall_firmware -

cisco rv130_vpn_router_firmware -

cisco rv130w_wireless-n_multifunction_vpn_router_firmware -

cisco rv215w_wireless-n_vpn_router_firmware -

Vendor Advisories

A vulnerability in the Universal Plug-and-Play (UPnP) service of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly, resulting in a denial of service (DoS) condition This vulnerability is due to improper validat ...