CVE-2021-1415

Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Authenticated Remote Code Execution Vulnerabilities

MEDIUM
6.3
CVSS Score
Published: April 8, 2021 at 04:06 AM UTC
Updated: June 17, 2026 at 03:31 AM UTC
9 products affected across 1 vendorRV340W FirmwareRV345 FirmwareRV345P Firmware

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Severity
MEDIUM6.3
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

Multiple vulnerabilities in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, remote attacker to execute arbitrary code with elevated privileges equivalent to the web service process on an affected device. These vulnerabilities exist because HTTP requests are not properly validated. An attacker could exploit these vulnerabilities by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device.

Affected

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

v < 1.0.03.21
Affected range stops below 1.0.03.21, so it looks safe — our inference, not a vendor statement
cisco-rv340 (same device)
v < 1.0.03.21
Affected range stops below 1.0.03.21, so it looks safe — our inference, not a vendor statement
cisco-rv340w (same device)
v < 1.0.03.21
Affected range stops below 1.0.03.21, so it looks safe — our inference, not a vendor statement
cisco-rv345 (same device)
v < 1.0.03.21
Affected range stops below 1.0.03.21, 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

6.3MEDIUMcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-502

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