CVE-2023-20118

Published Apr 5, 2023 CVSS 3.1 · 6.5 Medium EPSS 54.1% KEV · Listed

Description

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.

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Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Small Business RV Series Router Firmware

affected

Version	Status	Constraints
`1.0.1.17`	affected	—
`1.0.2.03`	affected	—
`1.1.0.09`	affected	—
`1.1.1.19`	affected	—
`1.1.1.06`	affected	—
`1.2.1.13`	affected	—
`1.2.1.14`	affected	—
`1.3.1.12`	affected	—
`1.3.2.02`	affected	—
`1.3.1.10`	affected	—
`1.4.2.15`	affected	—
`1.4.2.17`	affected	—
`1.4.2.19`	affected	—
`1.4.2.20`	affected	—
`1.4.2.22`	affected	—
`1.5.1.05`	affected	—
`1.5.1.11`	affected	—
`1.5.1.13`	affected	—

Configuration 1 [-]

AND

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

cpe:2.3:h:cisco:rv016:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND

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

cpe:2.3:h:cisco:rv042:-:*:*:*:*:*:*:*

Configuration 3 [-]

AND

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

cpe:2.3:h:cisco:rv042g:-:*:*:*:*:*:*:*

Configuration 4 [-]

AND

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

cpe:2.3:h:cisco:rv082:-:*:*:*:*:*:*:*

Configuration 5 [-]

AND

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

cpe:2.3:h:cisco:rv320:-:*:*:*:*:*:*:*

Configuration 6 [-]

AND

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

cpe:2.3:h:cisco:rv325:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2023-24297	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"])}]]

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is in the KEV database since March 3, 2025.

Exploit prediction score: 54.1% (54.107% probability within 30 days)

Exploitation active

Automatable no

Technical Impact total

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbr042-multi-vuln-ej76Pke5
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20118

History

Oct 22, 2025 12:30 AM Added references View changes

Type	Values Removed	Values Added
References		https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20118

Oct 21, 2025 8:30 PM References updated View changes

Type	Values Removed	Values Added
References	https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20118

Oct 21, 2025 7:30 PM Added references View changes

Type	Values Removed	Values Added
References		https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20118

Mar 12, 2025 5:45 PM Weaknesses updated. Affected versions updated View changes

Type	Values Removed	Values Added
Weaknesses	CWE-20
CPEs	cpe:2.3:o:cisco:rv016_firmware:1.5.1.13:::::::* cpe:2.3:o:cisco:rv016_firmware:4.2.3.08:::::::* cpe:2.3:o:cisco:rv042_firmware:1.5.1.13:::::::* cpe:2.3:o:cisco:rv042_firmware:4.2.3.08:::::::* cpe:2.3:o:cisco:rv042g_firmware:1.5.1.13:::::::* cpe:2.3:o:cisco:rv042g_firmware:4.2.3.08:::::::* cpe:2.3:o:cisco:rv082_firmware:1.5.1.13:::::::* cpe:2.3:o:cisco:rv082_firmware:4.2.3.08:::::::* cpe:2.3:o:cisco:rv320_firmware:1.5.1.13:::::::* cpe:2.3:o:cisco:rv320_firmware:4.2.3.08:::::::* cpe:2.3:o:cisco:rv325_firmware:1.5.1.13:::::::* cpe:2.3:o:cisco:rv325_firmware:4.2.3.08:::::::*	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::::::::

Mar 12, 2025 4:30 PM Description updated View changes

Type	Values Removed	Values Added
Description	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.	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"])}]]

Mar 4, 2025 3:45 AM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`	kev `{'dateAdded': '2025-03-03'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}`