CVE-2018-0175: Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability

CVE-2018-0175 · Severity: critical · CVSS 8 · Exploited in the wild · Published 2022-03-03

A format string vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS, IOS XE, and IOS XR Software allows an unauthenticated, adjacent attacker to cause a denial of service or execute arbitrary code with elevated privileges. The vulnerability is triggered by processing malicious LLDP packets.

Technologies: Cisco IOS, Cisco IOS XE, Cisco IOS XR. Vendors: Cisco.

Quick answers

Is CVE-2018-0175 exploited in the wild?
Yes. CVE-2018-0175 is known to be exploited in the wild, first recorded on 3 March 2022. Treat it as urgent.
How severe is CVE-2018-0175?
Critical severity, with a CVSS score of 8, published 3 March 2022.
Which products and versions are affected?
Cisco IOS up to (including) 15.6.3m1; Cisco IOS XE up to (including) 15.6.3m1; Cisco IOS XR 15.4(3)m4.1; Rockwell Automation Stratix 5400/5410/5700/5900/8000/8300.
Is there a fix for CVE-2018-0175?
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-2018-0175 attacked?
It is attacked from the adjacent network, in an operating system.
Am I affected by CVE-2018-0175?
Check whether you run Cisco IOS, Cisco IOS XE, Cisco IOS XR or one of the others listed. 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 up to (including) 15.6.3m1
  • Cisco IOS XE up to (including) 15.6.3m1
  • Cisco IOS XR 15.4(3)m4.1
  • Rockwell Automation Stratix 5400/5410/5700/5900/8000/8300

Timeline

  • 2018-03-28: disclosed: Initial Cisco advisory publication
  • 2022-03-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog

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