cvedb.io
CVE-2021-34730
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2021-08-18T20:15:07.447 · Last modified 2026-06-17T03:56:26.723

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 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.

Affected products

cisco — application_extension_platform

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.