Cisco SD-WAN Software Arbitrary File Corruption Vulnerability
Priority LOW 26CWE-552Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-552.
Summary
A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying file system of an affected system. This vulnerability is due to insufficient validation of the user-supplied input parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content in any arbitrary files that reside on the underlying host file system.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00229 13th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 SD-WAN Solution | all versions | — | No fix listed | CNA |
- Cisco SD-WAN Solution VendorCisco Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 23
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:* | 19.2 to before 19.2.3; 20.3 to before 20.3.1; 20.4 to before 20.4.1; 20.5 to before 20.5.1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sd-wan_vbond_orchestrator:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sd-wan_vmanage:*:*:*:*:*:*:*:* | before 18.4.6; 20.1 to before 20.1.2 | Vulnerable | Cisco |
| cpe:2.3:o:cisco:vsmart_controller_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:vsmart_controller:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:vedge_100_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:vedge_100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:vedge_1000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:vedge_1000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:vedge_100b_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
- cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:* Versions 19.2 to before 19.2.3; 20.3 to before 20.3.1; 20.4 to before 20.4.1; 20.5 to before 20.5.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sd-wan_vbond_orchestrator:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:a:cisco:sd-wan_vmanage:*:*:*:*:*:*:*:* Versions before 18.4.6; 20.1 to before 20.1.2 Vulnerable ·Cisco
- cpe:2.3:o:cisco:vsmart_controller_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:vsmart_controller:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:vedge_100_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:vedge_100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:vedge_1000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:vedge_1000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:vedge_100b_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
Show 13 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:cisco:vedge_100b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:vedge_100m_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:vedge_100m:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:vedge_100wm_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:vedge_100wm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:vedge_2000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:vedge_2000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:vedge_5000_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:vedge_5000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:vedge-100b_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:vedge-100b:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:vedge_cloud_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:vedge_cloud:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:h:cisco:vedge_100b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:vedge_100m_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:vedge_100m:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:vedge_100wm_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:vedge_100wm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:vedge_2000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:vedge_2000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:vedge_5000_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:vedge_5000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:vedge-100b_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:vedge-100b:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:vedge_cloud_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:vedge_cloud:-:*:*:*:*:*:*:* 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-2021-1512
- 2026-10-03 Alias added: GHSA-c5wr-523p-2hqc
References
More Cisco Catalyst Sd-wan Manager vulnerabilities
- TI-2026-53490 Cisco Catalyst SD-WAN Manager System Account Authorization Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2026-16388 Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
- TI-2026-16340 Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
- TI-2026-16436 Cisco Catalyst SD-WAN Controller Authenticated Privilege Escalation Vulnerability KEVCVSS 3.1HIGH 7.8
- TI-2022-05334 Cisco SD-WAN Software Privilege Escalation Vulnerability KEVCVSS 3.1HIGH 7.8
- TI-2026-16341 Cisco Catalyst SD-WAN Manager Information Disclosure Vulnerability KEVCVSS 3.1HIGH 7.5
Sources
- CVE-2021-1512 · CVE Program
- CVE-2021-1512 · NVD
- FIRST EPSS
- GHSA-c5wr-523p-2hqc · 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