CVE-2019-15957

What it is

A vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an authenticated, remote attacker with administrative privileges to inject arbitrary commands into the underlying operating system. When processed, the commands will be executed with root privileges. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by providing malicious input to a specific field in the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying Linux operating system as the root user.

At a glance

Exploitability

Can be exploited over the network with an admin-level account. High risk of data exposure, data tampering, service disruption.

Exploit odds

3.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2020-09-23 01:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:21 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.2% in the next 30 days (EPSS).
• Severity: 7.2 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2020-09-23 01:15 UTC

Last modified

2026-06-17 02:21 UTC

Exploit probability

3.2% · EPSS, next 30 days

Weakness

CWE-20 · Improper input validation

Record status

Modified

Affected

• Cisco rv016 multi-wan Vpn Firmware < 4.2.3.10
• Cisco rv042 Dual Wan Vpn < 4.2.3.10
• Cisco rv042g Dual Gigabit Wan Vpn Firmware < 4.2.3.10
• Cisco rv082 Dual Wan Vpn Router Firmware < 4.2.3.10
• Cisco rv320 Firmware < 1.5.1.05
• Cisco rv325 Firmware < 1.5.1.05

Attack profile CVSS 3.1 · 7.2

Attack vector

Network

Complexity

Low

Privileges needed

High

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2019-15957.md and follow it. Check whether this project is affected by CVE-2019-15957. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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