Vulnerability · Published Feb 4, 2021 · Assigned by cisco
CVE-2021-1321Cisco Small Business RV Series Routers Management Interface Remote Command Execution and Denial of Service Vulnerabilities
High 7.2
In plain English
A high-severity stack buffer overflow in Cisco Small Business RV Series Router Firmware from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 83% of all known vulnerabilities).
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Small Business RV Series Router Firmware | n/a |
Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
- 20210203 Cisco Small Business RV Series Routers Management Interface Remote Command Execution and Denial of Service Vulnerabilities vendor-advisory, x_refsource_CISCO