CVE-2018-0167: Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability
CVE-2018-0167 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2022-03-03
Multiple buffer overflow vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS, IOS XE, and IOS XR software. An unauthenticated, adjacent attacker could exploit these by sending crafted LLDP packets to cause a denial of service or execute arbitrary code with elevated privileges.
Yes. CVE-2018-0167 is known to be exploited in the wild, first recorded on 3 March 2022. Treat it as urgent.
How severe is CVE-2018-0167?
Critical severity, with a CVSS score of 8.8, 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 4.1 up to (excluding) 5.1.3; Rockwell Automation Stratix 5400/5410/5700/5900/8000/8300.
Is there a fix for CVE-2018-0167?
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-2018-0167 attacked?
It is attacked from the adjacent network, in an operating system.
Am I affected by CVE-2018-0167?
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.