Command injection in Cisco Small Business RV Series Router Firmware
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-77.
Summary
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"])}]]
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco Small Business RV Series Router Firmware | 1.0.1.17; 1.0.2.03; 1.1.0.09; 1.1.1.19; 1.1.1.06; 1.2.1.13; 1.2.1.14; 1.3.1.12; 1.3.2.02; 1.3.1.10; 1.4.2.15; 1.4.2.17; 1.4.2.19; 1.4.2.20; 1.4.2.22; 1.5.1.05; 1.5.1.11; 1.5.1.13 | — | No fix listed | CNA |
- Cisco Small Business RV Series Router Firmware VendorCisco Affected 1.0.1.17; 1.0.2.03; 1.1.0.09; 1.1.1.19; 1.1.1.06; 1.2.1.13; 1.2.1.14; 1.3.1.12; 1.3.2.02; 1.3.1.10; 1.4.2.15; 1.4.2.17; 1.4.2.19; 1.4.2.20; 1.4.2.22; 1.5.1.05; 1.5.1.11; 1.5.1.13 Fixed in — No fix listed CNA
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:rv016_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:rv016:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:rv042_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:rv042:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:rv042g_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:rv042g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:rv082_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:rv082:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:rv320_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:rv320:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:rv016_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:rv016:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:rv042_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:rv042:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:rv042g_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:rv042g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:rv082_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:rv082:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:rv320_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:rv320:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2025-03-03 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2023-20118
- 2026-10-03 Alias added: GHSA-gr43-pwpc-mp54
- 2026-10-19 EPSS moved to the 99th percentile and above
- 2026-10-25 EPSS moved to the 95th–99th percentile
- 2026-10-27 EPSS moved to the 99th percentile and above
References
Advisory 1
More Cisco Rv016 Firmware vulnerabilities
- TI-2023-06734 Authentication bypass by spoofing in Cisco Small Business RV Series Router Firmware CVSS 3.1CRITICAL 9.8
- TI-2020-02854 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities CVSS 3.1HIGH 7.2
- TI-2020-02853 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities CVSS 3.1HIGH 7.2
- TI-2020-02852 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities CVSS 3.1HIGH 7.2
- TI-2020-02851 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities CVSS 3.1HIGH 7.2
- TI-2020-02850 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities CVSS 3.1HIGH 7.2
Sources
- CVE-2023-20118 · CVE Program
- CVE-2023-20118 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-gr43-pwpc-mp54 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences