Cisco IOS and XE Software Internet Key Exchange Memory Leak Vulnerability (CVE-2018-0158)
Severity: high · Patch status: patched · Since 2022-03-03 · CVE-2018-0158
A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial-of-service (DoS) condition. CISA added CVE-2018-0158 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
