Vulnerability record · CVE-2022-20753 · published 4 May 2022
CVE-2022-20753: Cisco rv340 firmware stack-based buffer overflow vulnerability
Cisco · Rv340 Firmware
A vulnerability in web-based management interface of Cisco Small Business RV340 and RV345 Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending malicious input to an affected device. A successful exploit could allow the attacker to execute remote code on the affected device. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device.
Description
A vulnerability in web-based management interface of Cisco Small Business RV340 and RV345 Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending malicious input to an affected device. A successful exploit could allow the attacker to execute remote code on the affected device. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
Track CVE-2022-20753 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2022-20753), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.
