CVE-2017-6744: Cisco IOS Software SNMP Remote Code Execution Vulnerability

CVE-2017-6744 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2022-03-03

A buffer overflow vulnerability in the SNMP subsystem of Cisco IOS and IOS XE Software allows authenticated remote attackers to execute arbitrary code or cause a device reload. Exploitation requires sending crafted SNMP packets via IPv4 or IPv6 using valid community strings (v1/v2c) or user credentials (v3).

Technologies: Cisco IOS, Cisco Ios Software, Cisco IOS XE. Vendors: Cisco.

Quick answers

Is CVE-2017-6744 exploited in the wild?
Yes. CVE-2017-6744 is known to be exploited in the wild, first recorded on 3 March 2022. Treat it as urgent.
How severe is CVE-2017-6744?
Critical severity, with a CVSS score of 8.8, published 3 March 2022.
Which products and versions are affected?
Cisco IOS All versions of SNMP (1, 2c, 3) enabled; Cisco IOS XE All versions of SNMP (1, 2c, 3) enabled.
Is there a fix for CVE-2017-6744?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2017-6744 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2017-6744?
Check whether you run Cisco IOS, Cisco Ios Software or Cisco IOS XE. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Cisco IOS All versions of SNMP (1, 2c, 3) enabled
  • Cisco IOS XE All versions of SNMP (1, 2c, 3) enabled

Timeline

  • 2017-06-29: disclosed: Initial Cisco advisory publication
  • 2022-03-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog

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