Unrestricted file upload in NETGEAR ProSAFE Network Management System
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 · NVD. Fix status from CNA. Impact type from CWE-434.
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR ProSAFE Network Management System 1.6.0.26. Authentication is not required to exploit this vulnerability. The specific flaw exists within the MFileUploadController class. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-12124.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-27274
- 2026-10-03 Alias added: GHSA-p4c8-3v5r-q3h7
- 2026-10-23 EPSS moved to the 95th–99th percentile
- 2026-10-25 EPSS moved to the 90th–95th percentile
- 2026-10-30 EPSS moved to the 95th–99th percentile
References
More NETGEAR Prosafe Network Management System vulnerabilities
- TI-2023-19520 Improper authentication in NETGEAR ProSAFE Network Management System CVSS 3.1CRITICAL 9.8
- TI-2023-19519 Unrestricted file upload in NETGEAR ProSAFE Network Management System CVSS 3.1HIGH 8.8
- TI-2023-21791 Path traversal in NETGEAR ProSAFE Network Management System CVSS 3.1HIGH 8.8
- TI-2021-08815 Path traversal in NETGEAR ProSAFE Network Management System CVSS 3.1HIGH 8.3
- TI-2021-08813 OS command injection in NETGEAR ProSAFE Network Management System CVSS 3.1HIGH 8.8
- TI-2023-27463 Cross-site scripting in NETGEAR ProSAFE Network Management System CVSS 3.1CRITICAL 9.6
Sources
- CVE-2021-27274 · CVE Program
- CVE-2021-27274 · NVD
- FIRST EPSS
- GHSA-p4c8-3v5r-q3h7 · 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