CVE-2019-15957

Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Command Injection Vulnerability

HIGH
7.2
CVSS Score
Published: September 23, 2020 at 12:27 AM UTC
Updated: June 17, 2026 at 02:21 AM UTC
12 products affected across 1 vendorRV320 FirmwareRV325 FirmwareRV082 Dual WAN VPN Router Firmware

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Severity
HIGH7.2
Exploit prediction
EPSS 3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.2.3.10
Affected range stops below 4.2.3.10, so it looks safe — our inference, not a vendor statement
cisco-rv016-multi-wan-vpn (same device)
v < 4.2.3.10
Affected range stops below 4.2.3.10, so it looks safe — our inference, not a vendor statement
v < 4.2.3.10
Affected range stops below 4.2.3.10, so it looks safe — our inference, not a vendor statement
cisco-rv042g-dual-gigabit-wan-vpn (same device)
v < 4.2.3.10
Affected range stops below 4.2.3.10, so it looks safe — our inference, not a vendor statement
cisco-rv082-dual-wan-vpn-router (same device)
v < 1.5.1.05
Affected range stops below 1.5.1.05, so it looks safe — our inference, not a vendor statement
cisco-rv320-dual-gigabit-wan-vpn-router (same device)
v < 1.5.1.05
Affected range stops below 1.5.1.05, so it looks safe — our inference, not a vendor statement
cisco-rv325-dual-gigabit-wan-wf-vpn-router (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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