CVE-2018-0151: Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution Vulnerability

CVE-2018-0151 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2022-03-03

A buffer overflow vulnerability in the Quality of Service (QoS) subsystem of Cisco IOS and IOS XE Software allows a remote, unauthenticated attacker to execute arbitrary code or cause a denial of service. The flaw exists due to improper bounds checking on packets sent to UDP port 18999.

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

Quick answers

Is CVE-2018-0151 exploited in the wild?
Yes. CVE-2018-0151 is known to be exploited in the wild, first recorded on 3 March 2022. Treat it as urgent.
How severe is CVE-2018-0151?
Critical severity, with a CVSS score of 9.8, published 3 March 2022.
Which products and versions are affected?
Cisco IOS Software; Cisco IOS XE Software.
Is there a fix for CVE-2018-0151?
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-2018-0151 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2018-0151?
Check whether you run Cisco IOS, Cisco IOS XE, Cisco IOS XE Software 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 Software
  • Cisco IOS XE Software

Timeline

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

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.