Live › vulnerability › CVE-2017-6739
Go to dashboardCisco IOS and IOS XE contain a flaw in the SNMP subsystem that lets a remote attacker run code on the device or force it to reload. CISA lists it as actively exploited in the wild.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply updates per vendor instructions.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Cisco IOS and IOS XE Software | vendor | – | – |
Unknown from the sources.
Apply the updates per Cisco's vendor instructions; the specific fixed version is not stated in the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
A vulnerability in the SNMP implementation of could allow an authenticated, remote attacker to cause a reload of the affected system or to remotely execute code. An attacker could exploit this vulnerability by sending a crafted SNMP packet to the affected device.
The vulnerability is due to a buffer overflow in the affected code area. The vulnerability affects all versions of SNMP (versions 1, 2c, and 3). The attacker must know the SNMP read only community string (SNMP version 2c or earlier) or the user credentials (SNMPv3). An exploit could allow the attacker to execute arbitrary code and obtain full control of the system or to cause a reload of the affected system.
Only traffic directed to the affected system can be used to exploit this vulnerability.
This page as .md · .json · in your agent: get_signal("CVE-2017-6739")
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