Resource exhaustion in Vaadin
CVE-2020-36320
Unsafe validation RegEx in EmailValidator class in com.vaadin:vaadin-server versions 7.0.0 through 7.7.21 (Vaadin 7.0.0 through 7.7.21) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.020 (79.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Vaadin — versions 7.0.0
- Vaadin Vaadin-Server — versions 7.0.0
Weakness classification (CWE)
References
- vaadin.com/security/cve-2020-36320 (Vendor Advisory)
- github.com/vaadin/framework/issues/7757 (Exploit, Patch, Third Party Advisory)
- github.com/vaadin/framework/pull/12104 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-36320?
- CVE-2020-36320 is a high-severity vulnerability in Vaadin, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2021-04-23.
- How severe is CVE-2020-36320?
- High severity. CVSS v3 base score is 7.5 out of 10.