Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 99.8%; technical severity is CVSS 8.8.
NETGEAR R6250 before 1.0.4.6.Beta, R6400 before 1.0.1.18.Beta, R6700 before 1.0.1.14.Beta, R6900, R7000 before 1.0.7.6.Beta, R7100LG before 1.0.0.28.Beta, R7300DST before 1.0.0.46.Beta, R7900 before 1.0.1.8.Beta, R8000 before 1.0.3.26.Beta, D6220, D6400, D7000, and possibly other routers allow remote attackers to execute arbitrary commands via shell metacharacters in the path info to cgi-bin/.
Who should care
- Teams operating D6220 Firmware, D6400 Firmware, Multiple Routers +9 more
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether D6220 Firmware, D6400 Firmware, Multiple Routers +9 more is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Apply updates per vendor instructions.
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Vendor remediation
Patch and remediation links
Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CWE
- CWE-352
- Affected versions
- NETGEAR D6220 Firmware (End Including: 1.0.0.22); NETGEAR D6400 Firmware (End Including: 1.0.0.56); NETGEAR Multiple Routers; NETGEAR R6250 Firmware (End Including: 1.0.4.6_10.1.12); NETGEAR R6400 Firmware (End Including: 1.0.1.18); NETGEAR R6700 Firmware (End Including: 1.0.1.14); NETGEAR R6900 Firmware (End Including: 1.0.1.14); NETGEAR R7000 Firmware (End Including: 1.0.7.2_1.1.93)
- Published
- 14 December 2016
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 99.8%
- Signal calculated at 84
External references
- Government advisory from www.cisa.gov
- Exploit information from packetstormsecurity.com
- Third-party advisory from www.securityfocus.com
- Mitigation guidance from www.sj-vs.net
- Exploit information from kalypto.org
- Third-party advisory from www.exploit-db.com
- Exploit information from www.exploit-db.com
- Government advisory from www.kb.cert.org