Cisco Remote PHY Device Software Command Injection Vulnerability
Key facts
- Attack vector
- Local
- 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 Cisco Remote PHY Device Software could allow an authenticated, local attacker to execute commands on the underlying Linux shell of an affected device with root privileges. The vulnerability exists because the affected software does not properly sanitize user-supplied input. An attacker who has valid administrator access to an affected device could exploit this vulnerability by supplying certain CLI commands with crafted arguments. A successful exploit could allow the attacker to run arbitrary commands as the root user, which could result in a complete system compromise.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 Remote PHY | all versions | — | No fix listed | CNA |
- Cisco Remote PHY VendorCisco Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:remote_phy_120_firmware:*:*:*:*:*:*:*:* | before 7.7 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:remote_phy_120:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:remote_phy_220_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:remote_phy_220:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:remote_phy_shelf_7200_firmware:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:h:cisco:remote_phy_shelf_7200:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:remote_phy_120_firmware:*:*:*:*:*:*:*:* Versions before 7.7 Vulnerable ·Cisco
- cpe:2.3:h:cisco:remote_phy_120:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:remote_phy_220_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:remote_phy_220:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:remote_phy_shelf_7200_firmware:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:h:cisco:remote_phy_shelf_7200:-:*:*:*:*:*:*:* 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-2020-3176
- 2026-10-03 Alias added: GHSA-4m8j-77pp-fvjx
References
More Cisco Remote Phy 120 Firmware vulnerabilities
- TI-2019-01462 Cisco Remote PHY Device Software Command Injection Vulnerability CVSS 3.1MEDIUM 6.7
Sources
- CVE-2020-3176 · CVE Program
- CVE-2020-3176 · NVD
- FIRST EPSS
- GHSA-4m8j-77pp-fvjx · 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