CVE-2023-20073 | Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Arbitrary File Upload Vulnerability

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.

Published: 2023-04-05 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-20073 is rated Moderate Risk (56.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 91.34%, 100th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-20073

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-06 91.37% 91.34% -0.03%
2 2026-02-01 91.34% 91.37% +0.03%
3 2026-01-04 — 91.34% —

Full EPSS history (50 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-20073

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2023-20073

Affected software / configurations for CVE-2023-20073

Vendor Product Version Raw CPE
cisco rv340_firmware <= 1.0.03.29 cpe:2.3:o:cisco:rv340_firmware:*:*:*:*:*:*:*:*
cisco rv340w_firmware <= 1.0.03.29 cpe:2.3:o:cisco:rv340w_firmware:*:*:*:*:*:*:*:*
cisco rv345_firmware <= 1.0.03.29 cpe:2.3:o:cisco:rv345_firmware:*:*:*:*:*:*:*:*
cisco rv345p_firmware <= 1.0.03.29 cpe:2.3:o:cisco:rv345p_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-20073

cvelogic Threat Intelligence