CVE-2021-1315

Cisco Small Business RV Series Routers Management Interface Command Injection Vulnerabilities

HIGH
7.2
CVSS Score
Published: February 4, 2021 at 04:56 PM UTC
Updated: June 17, 2026 at 03:31 AM UTC
13 products affected across 1 vendorRV082 Dual WAN VPN Router FirmwareRV042 Dual WAN VPN Router FirmwareRV042G Dual Gigabit WAN VPN Router Firmware

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

Description

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to inject arbitrary commands that are executed with root privileges. These vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to a targeted device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system. To exploit these vulnerabilities, an attacker would need to have valid administrator credentials on an affected device.

Affected

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

v ≤ 4.2.3.14
cisco-rv016-multi-wan-vpn-router (same device)
v ≤ 4.2.3.14
cisco-rv042-dual-wan-vpn-router (same device)
v ≤ 4.2.3.14
cisco-rv042g-dual-gigabit-wan-vpn-router (same device)
v ≤ 4.2.3.14
cisco-rv082-dual-wan-vpn-router (same device)
v ≤ 1.5.1.11
cisco-rv320-dual-gigabit-wan-vpn-router (same device)
v ≤ 1.5.1.11
cisco-rv325-dual-gigabit-wan-vpn-router (same device)

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

7.2HIGHcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20CWE-78

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