Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability (CVE-2018-0167)
Severity: high · Patch status: patched · Since 2022-03-03 · CVE-2018-0167
There is a buffer overflow vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software which could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition or execute arbitrary code. CISA added CVE-2018-0167 to its Known Exploited Vulnerabilities catalog on Mar 3, 2022, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Mar 17, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
