CVE-2018-0189: cisco ios_xe Resource Management Errors
Vulnerability summary
CVE-2018-0189 is a high (CVSS 7.1) Resource Management Errors vulnerability in cisco ios_xe. EPSS estimates a 1.00% chance of exploitation in the next 30 days, higher than 62% of scored vulnerabilities.
Timeline
- 28-03-2018PublishedVulnerability first disclosed.
- 02-12-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the Forwarding Information Base (FIB) code of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, network attacker to cause a denial of service (DoS) condition. The vulnerability is due to a limitation in the way the FIB is internally representing recursive routes. An attacker could exploit this vulnerability by injecting routes into the routing protocol that have a specific recursive pattern. The attacker must be in a position on the network that provides the ability to inject a number of recursive routes with a specific pattern. An exploit could allow the attacker to cause an affected device to reload, creating a DoS condition. Cisco Bug IDs: CSCva91655.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.00%
Chance of exploitation in the next 30 days
Percentile
62%
Versus all other CVEs
30-day change
0.00 pp
From 1.00% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco1 product
- ios_xe< 15.5\(3\)s5 | < 15.5\(3\)m5 | < 15.4\(3\)s7 | < 15.4\(2\)s1 | < 15.4\(1\)s1 | < 15.4\(1\)s0a | < 15.2\(5\)e1 | < 15.2\(4\)e5 | < 15.2\(2\)e1 | < 15.2\(1\)e1
1 vendor · 1 product
References
2 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-FIB-dosX Refsource CONFIRMVendor Advisory