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CVE-2023-20118

MEDIUM · CVSS 6.5 · Analyzed

Published: 2023-04-13 · Updated: 2026-06-17 · Source: NVD

Vulnerability overview

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"])}]]

Severity and scoring

CVSS score
6.5 · MEDIUM
CVSS version
3.1
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-77

CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.

Known exploitation and remediation

Listed in CISA’s Known Exploited Vulnerabilities catalog.

Affected product
Cisco · Small Business RV Series Routers
Added to catalog
2025-03-03
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA remediation due date
2025-03-24

CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.

Verify affected versions and patch availability in the vendor advisory before making changes.

Affected products and versions

  • cpe:2.3:o:cisco:rv016_firmware:*:*:*:*:*:*:*:*

  • cpe:2.3:o:cisco:rv042_firmware:*:*:*:*:*:*:*:*

  • cpe:2.3:o:cisco:rv042g_firmware:*:*:*:*:*:*:*:*

  • cpe:2.3:o:cisco:rv082_firmware:*:*:*:*:*:*:*:*

  • cpe:2.3:o:cisco:rv320_firmware:*:*:*:*:*:*:*:*

  • cpe:2.3:o:cisco:rv325_firmware:*:*:*:*:*:*:*:*

These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.

Advisories and references

Explore official sources

Read the official NVD record ↗

Explore the CISA catalog ↗

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