# CVE-2023-20118: Cisco Small Business RV Series Routers Command Injection Vulnerability

- Exploited (CISA KEV): yes, added 2025-03-03
- Published: 2023-04-05
- CVSS: 6.5 MEDIUM (v3.1)
- EPSS: 54.1% (99th percentile)
- CWE: CWE-77

A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary commands on an affected device.

 This vulnerability is due to improper validation of user input within incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to gain root-level privileges and access unauthorized data. To exploit this vulnerability, an attacker would need to have valid administrative credentials on the affected device.

 Cisco has not and will not release software updates that address this vulnerability.   However, administrators may disable the affected feature as described in the Workarounds ["#workarounds"] section.

  {{value}} ["%7b%7bvalue%7d%7d"])}]]

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | No public claim | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2023-20118 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2023-20118