Exploited vulnerability · CISA KEV

Is CVE-2023-20118 exploited? Yes: in CISA KEV since 3 Mar 2025

Gociux · Cisco Small Business RV Series Routers · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2023-20118, Cisco Small Business RV Series Routers Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 3 Mar 2025, 698 days after it was published. It affects Cisco Small Business RV Series Routers, an internet-facing product of the kind attackers use for initial access. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What it is

Multiple Cisco Small Business RV Series Routers contains a command injection vulnerability in the web-based management interface. Successful exploitation could allow an authenticated, remote attacker to gain root-level privileges and access unauthorized data.

What to do

1. Check whether you run it. Look for Small Business RV Series Routers in your asset inventory, including appliances and cloud images. Stack check lists every exploited Cisco CVE at once.
2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 5 Apr 2023.
4. Get told next time. Email alerts when CISA adds a CVE for Cisco.

References

• sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbr0
• nvd.nist.gov/vuln/detail/CVE-2023-20118

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in March 2025 · Cisco scorecard · act-now radar.