OS command injection in Tenable Grandstream GWN7000
Priority MEDIUM 43CWE-489Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- 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-78.
Summary
Grandstream GWN7000 firmware version 1.0.9.4 and below allows authenticated remote users to modify the system's crontab via undocumented API. An attacker can use this functionality to execute arbitrary OS commands on the router.
Why it matters now
EPSS 0.02473 84th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tenable | Grandstream GWN7000 | up to 1.0.9.4 | — | No fix listed | CNA |
- Grandstream GWN7000 VendorTenable Affected up to 1.0.9.4 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:grandstream:gwn7000_firmware:*:*:*:*:*:*:*:* | up to 1.0.9.4 | Vulnerable | Grandstream |
| cpe:2.3:h:grandstream:gwn7000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Grandstream |
- cpe:2.3:o:grandstream:gwn7000_firmware:*:*:*:*:*:*:*:* Versions up to 1.0.9.4 Vulnerable ·Grandstream
- cpe:2.3:h:grandstream:gwn7000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Grandstream
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-5756
- 2026-10-03 Alias added: GHSA-hcrv-c4wc-hj94
References
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Sources
- CVE-2020-5756 · CVE Program
- CVE-2020-5756 · NVD
- FIRST EPSS
- GHSA-hcrv-c4wc-hj94 · 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