CVE-2016-6277
Published: March 7, 2022
Official Description
NETGEAR confirmed multiple routers allow unauthenticated web pages to pass form input directly to the command-line interface, permitting remote code execution.
CISA KEV Advisory
NETGEAR Multiple Routers Remote Code Execution Vulnerability
NETGEAR confirmed multiple routers allow unauthenticated web pages to pass form input directly to the command-line interface, permitting remote code execution.
Apply updates per vendor instructions.
Risk Analysis
This vulnerability affects multiple NETGEAR routers, allowing unauthenticated web pages to directly pass form input to the command-line interface, leading to remote code execution. The high EPSS score of 0.93986 indicates a very high likelihood of exploitation, making this a critical vulnerability. Its inclusion in CISA's KEV catalog confirms active exploitation.
This vulnerability has been actively exploited in the wild, as indicated by its exploit status and inclusion in CISA's KEV catalog. The flaw is remotely exploitable by unauthenticated attackers.
Update NETGEAR routers to the latest firmware provided by the vendor to address the remote code execution vulnerability. Limit administrative access to the router interface to trusted networks.
Technical Analysis
CVE-2016-6277 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2016-6277 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-6277 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1