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CVE-2023-20073

CriticalPublished

Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Arbitrary File Upload Vulnerability

Published: Apr 5, 2023
Updated: Oct 28, 2024
Assigning CNA: cisco
Evidence observed: Aug 5, 2026

Primary CVSS

9.8/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

90.1%

High · next 30 days

Percentile: 99.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

A vulnerability in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device. This vulnerability is due to insufficient authorization enforcement mechanisms in the context of file uploads. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to upload arbitrary files to the affected device.

Sources

CVE-2023-20073PoC
PoC based on https://unsafe[.]sh/go-173464.html research

Responsible use

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