CVE-2020-3453

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

MEDIUM
6.8
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
MEDIUM6.8
Exploit prediction
EPSS 3%
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

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

Quick Info

StatusMODIFIED
CWE
CWE-119CWE-20

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