CVE-2020-3451

Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vulnerabilities

MEDIUM
4.7
CVSS Score
Published: September 4, 2020 at 02:26 AM UTC
Updated: June 17, 2026 at 03:18 AM UTC
9 products affected across 1 vendorRV340W FirmwareRV345 FirmwareRV345P Firmware

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Severity
MEDIUM4.7
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV340 Series Routers could allow an authenticated, remote attacker with administrative credentials to execute arbitrary commands on the underlying operating system (OS) as a restricted user. For more information about these vulnerabilities, see the Details section of this advisory.

Affected

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

v < 1.0.03.19
Affected range stops below 1.0.03.19, so it looks safe — our inference, not a vendor statement
cisco-rv340 (same device)
v < 1.0.03.19
Affected range stops below 1.0.03.19, so it looks safe — our inference, not a vendor statement
cisco-rv340w (same device)
v < 1.0.03.19
Affected range stops below 1.0.03.19, so it looks safe — our inference, not a vendor statement
cisco-rv345 (same device)
v < 1.0.03.19
Affected range stops below 1.0.03.19, so it looks safe — our inference, not a vendor statement
cisco-rv345p (same device)
80%
All versions
All versions
80%
All versions
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 automatablePartial impact

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

CVSS

4.7MEDIUMcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-119CWE-20

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