Improper input validation in Cisco Asyncos
CVE-2019-1947
A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause the CPU utilization to increase to 100 percent, causing a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of email messages that contain large attachments. An attacker could exploit this vulnerability by sending a malicious email message through the targeted device. A successful exploit could allow the attacker to cause a permanent DoS condition due to high CPU utilization. This vulnerability may require manual intervention to recover the ESA.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.019 (79.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Cisco Asyncos — versions 12.1.0-085
- Cisco Email Security Appliance (Esa)
- Cisco Email Security Appliance — versions 11.1.0-131
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-1947?
- CVE-2019-1947 is a high-severity vulnerability in Cisco Asyncos, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2020-09-23.
- How severe is CVE-2019-1947?
- High severity. CVSS v3 base score is 8.6 out of 10.