Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from Vendor (oracle) · only source for this CVE.
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: WebSocket). Supported versions that are affected are 4.0.0-4.5.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Helidon. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
AnalysisAI
Denial of service in Oracle Helidon versions 4.0.0 through 4.5.4 allows an unauthenticated remote attacker to hang or repeatedly crash the server by sending crafted traffic to the WebSocket component over HTTP. The flaw is rated CVSS 3.1 base 7.5 (AV:N/AC:L/PR:N/UI:N, availability impact only) and Oracle's own advisory text describes it as easily exploitable. …
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Same weakness CWE-400 – Uncontrolled Resource Consumption
View allSame technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-79683
GHSA-vxjw-v2hc-v7wx