CVE-2026-73935

HighCVSS 7.5

Published: 18/08/2026(UTC)Updated: 19/08/2026(UTC)Translated: 19/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.32%

25th percentile - higher than 25% of all known CVEs

Summary

Vulnerability in Oracle Fusion Middleware Helidon (Imperative Web Server) version 4.5.1. Easily exploitable by unauthenticated attacker via HTTP/2, can cause hang or frequent crashes (complete DoS) of Helidon. CVSS 7.5.

Risk Assessment

Attack can cause service unavailability, impacting business continuity.

Recommendation

Apply available patches or upgrade Helidon to a non-vulnerable version.

Original NVD description (English source)

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 4.5.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 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).