CVE-2023-20118

What it is

A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to improper validation of user input within incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to gain root-level privileges and access unauthorized data. To exploit this vulnerability, an attacker would need to have valid administrative credentials on the affected device. Cisco has not and will not release software updates that address this vulnerability. However, administrators may disable the affected feature as described in the Workarounds ["#workarounds"] section. {{value}} ["%7b%7bvalue%7d%7d"])}]]

At a glance

Exploitability

Can be exploited over the network with an admin-level account. High risk of data exposure, data tampering.

In the wild

CISA lists this as exploited in real attacks. Treat as urgent.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2022-10-27 18:47 UTC ReservedThe CVE id was reserved by its CNA
2. 2023-04-13 07:15 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2025-03-03 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
4. 2025-03-24 Remediation deadlineCISA's due date for federal agencies to fix it
5. 2026-06-17 05:29 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
• Exploit odds: 54.1% in the next 30 days (EPSS).
• Severity: 6.5 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2023-04-13 07:15 UTC

Last modified

2026-06-17 05:29 UTC

Added to CISA KEV

2025-03-03

Exploit probability

54.1% · EPSS, next 30 days

Weakness

CWE-77 · Command injection

Record status

Analyzed

Affected

• Cisco rv016 Firmware
• Cisco rv042 Firmware
• Cisco rv042g Firmware
• Cisco rv082 Firmware
• Cisco rv320 Firmware
• Cisco rv325 Firmware

Attack profile CVSS 3.1 · 6.5

Attack vector

Network

Complexity

Low

Privileges needed

High

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2023-20118.md and follow it. Check whether this project is affected by CVE-2023-20118. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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