CVE-2017-6736
Published: March 3, 2022
Official Description
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE contains a vulnerability that could allow an authenticated, remote attacker to remotely execute code.
CISA KEV Advisory
Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE contains a vulnerability that could allow an authenticated, remote attacker to remotely execute code.
Apply updates per vendor instructions.
Risk Analysis
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE could allow an authenticated, remote attacker to execute code. The high EPSS score of 0.89127 indicates a very high likelihood of exploitation, and its presence in CISA's KEV confirms it has been actively exploited.
This vulnerability is actively being exploited in the wild. Authenticated attackers can remotely execute code on affected Cisco devices.
Apply all available security updates for Cisco IOS and IOS XE. Ensure SNMP is configured securely and restrict access to trusted networks and users.
Technical Analysis
CVE-2017-6736 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-2017-6736 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.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2017-6736 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