Is CVE-2017-6739 actively exploited?

Yes. CVE-2017-6739 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2017-6739 be exploited remotely?

The attack vector of CVE-2017-6739 has not been classified yet.

What is the CVSS score of CVE-2017-6739?

CVE-2017-6739 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2017-6739

HIGHCISA KEVIN THE WILD

CVE-2017-6739

Published: March 3, 2022

EPSS:28.84%probability of exploitation in 30 daysPercentile:96.5th

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 on an affected system or cause an affected system to reload.

NVD Source

CISA KEV Advisory

Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability

Added to KEV: 2022-03-03Federal patch deadline: 2022-03-24

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This vulnerability in the SNMP subsystem of Cisco IOS and IOS XE allows an authenticated, remote attacker to execute code or cause a system reload. The high severity, confirmed in-the-wild exploitation, and an EPSS score of 0.28835 indicate a significant and actively exploited threat to network device stability and security.

This vulnerability is actively exploited in the wild and is listed in CISA's KEV catalog. It is remotely exploitable by an authenticated attacker.

Recommended Action

Apply the latest security updates to Cisco IOS and IOS XE to patch the SNMP subsystem vulnerability. Restrict SNMP access to trusted networks and use strong, unique community strings or SNMPv3 with authentication and encryption.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2017-6739 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-2017-6739 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.