What’s Vulnerable › Vulnerabilities
CVE-2021-1344: Cisco Small Business RV Series Routers Management Interface Remote Command Execution and Denial of Service Vulnerabilities
- Severity: high (CVSS 7.2 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-02-04 · updated 2026-06-17
- Weakness: CWE-121
Description
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly. These vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit these vulnerabilities by sending crafted HTTP requests 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 denial of service (DoS) condition. To exploit these vulnerabilities, an attacker would need to have valid administrator credentials on the affected device.
Affected products
- Cisco Rv016 Multi-Wan Vpn Router Firmware: through 4.2.3.14
- Cisco Rv042 Dual Wan Vpn Router Firmware: through 4.2.3.14
- Cisco Rv042G Dual Gigabit Wan Vpn Router Firmware: through 4.2.3.14
- Cisco Rv082 Dual Wan Vpn Router Firmware: through 4.2.3.14
- Cisco Rv320 Dual Gigabit Wan Vpn Router Firmware: through 1.5.1.11
- Cisco Rv325 Dual Gigabit Wan Vpn Router Firmware: through 1.5.1.11
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-overflow-ghZP68yj
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-overflow-ghZP68yj
Get alerted when CVE-2021-1344 or the next vulnerability affects your stack