Improper input validation in Cisco iOS And Xe Software
CVE-2019-1746
A vulnerability in the Cluster Management Protocol (CMP) processing code in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation when processing CMP management packets. An attacker could exploit this vulnerability by sending malicious CMP management packets to an affected device. A successful exploit could cause the switch to crash, resulting in a DoS condition. The switch will reload automatically.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Cisco iOS And Xe Software — versions 3.2.0SG, 3.2.1SG, 3.2.2SG
- Cisco iOS — versions 15.2\(4\)ea6, 15.2(4)ec2, 15.0(2)ex8
- Cisco iOS Xe — versions 3.2.0sg, 3.2.1sg, 3.2.2sg
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327… (vendor-advisory, Patch, Vendor Advisory)
- www.securityfocus.com/bid/107612 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2019-1746?
- CVE-2019-1746 is a high-severity vulnerability in Cisco iOS And Xe Software, classified under Improper Input Validation. CVSS score: 7.4/10. Published 2019-03-28.
- How severe is CVE-2019-1746?
- High severity. CVSS v3 base score is 7.4 out of 10.