CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2021-3859
High (7.5). EPSS 1.7% chance of exploitation in the next 30 days. Fixed in io.undertow:undertow-core 2.2.15.
A flaw was found in Undertow that tripped the client-side invocation timeout with certain calls made over HTTP2. This flaw allows an attacker to carry out denial of service attacks.
Severity
- EPSS
- 1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-214, CWE-668
- Published
- Modified
- Record from
- the NVD, synced
Affected
- netapp:cloud_secure_agent
- netapp:oncommand_insight
- netapp:oncommand_workflow_automation
- redhat:jboss_enterprise_application_platform
- redhat:single_sign-on
- redhat:undertow
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-339q-62wm-c39w | Maven | io.undertow:undertow-core | <2.2.15 | 2.2.15 |