CVE-2019-1652: Cisco Small Business Routers Improper Input Validation Vulnerability

CVE-2019-1652: Technical Deep-Dive (Auto Refreshed)

Generated on 2026-03-31T21:40:03.358Z. This file is automatically regenerated every 30 minutes by the CVE AI enrichment job using web sources (NVD, MITRE, CISA KEV, GitHub).

Executive Technical Summary

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.

Context preserved from previous revision: 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. 1. Use only isolated environments and systems you own or are explicitly authorized to test.

Technical Details

CVE: CVE-2019-1652
KEV date added: 2022-03-03
KEV due date: 2022-03-17
NVD published: 2019-01-24
NVD modified: 2025-10-28
MITRE modified: 2025-10-21
CVSS base score: 7.2
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS exploitability score: 1.2
CVSS impact score: 5.9
Attack vector: Network
Attack complexity: Low
Privileges required: High
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Versions and Products Impacted

cisco / rv320 firmware (versions: >= 1.4.2.15, < 1.4.2.22)
cisco / rv325 firmware (versions: >= 1.4.2.15, < 1.4.2.22)
Cisco / Cisco Small Business RV Series Router Firmware (versions: n/a)

Weakness Classification

CWE-20
CWE-78

Repositories for Lab Validation (Public Examples)

No public repository matched this CVE query in the current run.

People and Organizations Mentioned

cisco
Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers

Practical Defensive Validation (Authorized Only)

Use only isolated environments and systems you own or are explicitly authorized to test.
Snapshot infrastructure before validation and preserve baseline logs (EDR, SIEM, OS, app).
Inventory cisco / rv320 firmware (versions: >= 1.4.2.15, < 1.4.2.22) assets and confirm exact vulnerable versions with automated checks.
Patch in staged environments and validate closure with scanners + service health checks.
Map detections to MITRE ATT&CK tactics relevant to your environment and tune alert quality.

References

This content is for defensive security training and authorized validation only.