CVE-2018-0158: Cisco IOS and XE Software Internet Key Exchange Memory Leak Vulnerability
CVE-2018-0158 · Severity: critical · CVSS 8.6 · Exploited in the wild · Published 2022-03-03
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS and IOS XE Software allows an unauthenticated, remote attacker to cause a memory leak or device reload. The issue is caused by incorrect processing of crafted IKEv2 packets, leading to a denial-of-service (DoS) condition.
Yes. CVE-2018-0158 is known to be exploited in the wild, first recorded on 3 March 2022. Treat it as urgent.
How severe is CVE-2018-0158?
Critical severity, with a CVSS score of 8.6, published 3 March 2022.
Which products and versions are affected?
Cisco IOS 15.5(3)S1.1 through 15.5(3)S1.12; Cisco IOS XE.
Is there a fix for CVE-2018-0158?
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-2018-0158 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2018-0158?
Check whether you run Cisco IOS, Cisco Ios Software, Cisco IOS XE 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 15.5(3)S1.1 through 15.5(3)S1.12
Cisco IOS XE
Timeline
2018-03-28: disclosed: Initial vendor advisory published by Cisco
2022-03-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
2022-03-03: disclosed: NVD publication date
2022-03-17: other: CISA KEV required action due date