Cisco IOS and IOS XE Remote Code Execution Vulnerability (CVE-2017-3881)
Severity: critical · Patch status: patched · Since 2022-03-25 · CVE-2017-3881
A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges. CISA added CVE-2017-3881 to its Known Exploited Vulnerabilities catalog on Mar 25, 2022, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Apr 15, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
