CVE-2018-0175VulnerabilityPublished 03/03/2022Updated 10/24/2026
CVE-2018-0175: Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability
Affects Cisco IOS, XR, and XE SoftwareSource CISA KEV
Severity
HighNo CVSS score published yet
- Exploitation
Actively exploited – in CISA KEV since 03/03/2022
- KEV deadline
- 03/17/2022
- EPSS
- 3.5% chance of exploitation in 30 days – higher than 89% of CVEs
What to do
CISA required action
Apply updates per vendor instructions.
Description
CVE-2018-0175 is a format string vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem affecting Cisco IOS, IOS XE, and IOS XR software. This vulnerability allows an unauthenticated, adjacent attacker to cause a denial of service (DoS) or execute arbitrary code with elevated privileges on affected devices. It has been exploited in the wild, indicating active threat usage. No specific affected versions or patch information is provided in the input data.