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Rv340 Dual Wan Gigabit Vpn Router Firmware CVE-2024-20470

HIGH
Improper Neutralization of Expression/Command Delimiters (CWE-146)
2024-10-02 psirt@cisco.com
7.2
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Expression separator neutralization
Impact

CVSS score of 7.2 (HIGH). Attack characteristics: network attack vector, low complexity, high privileges required, no user interaction not required.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.6% exploitation probability (EPSS)

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AnalysisAI

A vulnerability in the web-based management interface of Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to execute. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-146. A vulnerability in the web-based management interface of Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device. In order to exploit this vulnerability, the attacker must have valid admin credentials. This vulnerability exists because the web-based management interface does not sufficiently validate user-supplied input. An attacker could exploit this vulnerability by sending crafted HTTP input to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system. Affected products include: Cisco Rv340 Dual Wan Gigabit Vpn Router Firmware, Cisco Rv340W Dual Wan Gigabit Wireless-Ac Vpn Router Firmware, Cisco Rv345 Dual Wan Gigabit Vpn Router Firmware, Cisco Rv345P Dual Wan Gigabit Poe Vpn Router Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.2 HIGH
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

A vulnerability in the web-based management interface of Cisco Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device. In order to exploit this vulnerability, the attacker must have valid admin credentials.

This vulnerability exists because the web-based management interface does not sufficiently validate user-supplied input. An attacker could exploit this vulnerability by sending crafted HTTP input to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system.

Threat Intelligence Overview

EPSS Score
0.6%
Top 55% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.6%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

37
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.00.29:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.00.33:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.01.16:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.01.17:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.01.18:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.01.20:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.02.16:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.15:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.16:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.17:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.18:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.19:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.20:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.21:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.22:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.24:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.26:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.27:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.28:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340_dual_wan_gigabit_vpn_router_firmware:1.0.03.29:*:*:*:*:*:*:*
+ 60 more

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