Improper input validation in Cisco Asr 5000
CVE-2019-16026
A vulnerability in the implementation of the Stream Control Transmission Protocol (SCTP) on Cisco Mobility Management Entity (MME) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an eNodeB that is connected to an affected device. The vulnerability is due to insufficient input validation of SCTP traffic. An attacker could exploit this vulnerability by leveraging a man-in-the-middle position between the eNodeB and the MME and then sending a crafted SCTP message to the MME. A successful exploit would cause the MME to stop sending SCTP messages to the eNodeB, triggering a DoS condition.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.014 (71.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Cisco Asr 5000
- Cisco Asr 5500
- Cisco Asr 5700
- Cisco Asr 5000 Series Software — versions unspecified
- Cisco Staros
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200108… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-16026?
- CVE-2019-16026 is a medium-severity vulnerability in Cisco Asr 5000, classified under Improper Input Validation. CVSS score: 5.9/10. Published 2020-01-26.
- How severe is CVE-2019-16026?
- Medium severity. CVSS v3 base score is 5.9 out of 10.