CVE-2021-34730 Information
Description
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 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 attacker 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.
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Reference
Attack Complexity
LOW
Privileges Required
NONE
User Interaction Required
NONE
Scope
NONE
Confidentiality Impact
UNCHANGED
Integrity Impact
HIGH
Availability Impact
HIGH
Base Score
HIGH
Base Severity
9.8
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