Memory corruption in Cisco Small Business RV Series Router Firmware
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
A vulnerability in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. The vulnerability is due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system of the affected device. Cisco has not released software updates that address this vulnerability.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 | all versions | — | No fix listed | CNA |
- Cisco Small Business RV Series Router Firmware VendorCisco Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:rv110w_firmware:1.0.3.55:*:*:*:*:*:*:* | 1.0.3.55 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:rv110w:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:rv130_firmware:1.0.3.55:*:*:*:*:*:*:* | 1.0.3.55 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:rv130:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:rv130w_firmware:1.0.3.55:*:*:*:*:*:*:* | 1.0.3.55 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:rv130w:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:rv215w_firmware:1.0.3.55:*:*:*:*:*:*:* | 1.0.3.55 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:rv215w:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:rv110w_firmware:1.0.3.55:*:*:*:*:*:*:* Versions 1.0.3.55 Vulnerable ·Cisco
- cpe:2.3:h:cisco:rv110w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:rv130_firmware:1.0.3.55:*:*:*:*:*:*:* Versions 1.0.3.55 Vulnerable ·Cisco
- cpe:2.3:h:cisco:rv130:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:rv130w_firmware:1.0.3.55:*:*:*:*:*:*:* Versions 1.0.3.55 Vulnerable ·Cisco
- cpe:2.3:h:cisco:rv130w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:rv215w_firmware:1.0.3.55:*:*:*:*:*:*:* Versions 1.0.3.55 Vulnerable ·Cisco
- cpe:2.3:h:cisco:rv215w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-1459
- 2026-10-03 Alias added: GHSA-wpjw-2wcf-9m6m
References
More Cisco Rv110w Firmware vulnerabilities
- TI-2019-01289 Cisco RV110W, RV130W, and RV215W Routers Management Interface Remote Command Execution Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2026-19921 An OS command injection vulnerability exists in the start_lltd() function of the "rc"… CVSS 3.1HIGH 7.2
- TI-2026-19920 An OS command injection vulnerability exists in the sub_34984() function of the "rc"… CVSS 3.1HIGH 7.2
- TI-2026-19919 An OS command injection vulnerability exists in the save_syslog_to_file() function of the… CVSS 3.1HIGH 7.2
- TI-2026-19918 An OS command injection vulnerability exists in the start_bonjour() function of the "rc"… CVSS 3.1HIGH 7.2
- TI-2021-00894 Stack-based buffer overflow in Cisco Small Business RV Series Router Firmware CVSS 3.1HIGH 7.2
Sources
- CVE-2021-1459 · CVE Program
- CVE-2021-1459 · NVD
- FIRST EPSS
- GHSA-wpjw-2wcf-9m6m · 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