Vulnerability in the Helidon product of Oracle Fusion Middleware (component: WebSocket). (CVE-2026-83480)
A vulnerability in the WebSocket component of Oracle Fusion Middleware's Helidon product (versions 4.0.0 through 4.5.4) allows an unauthenticated attacker with network access via HTTP to cause a partial denial of service. The vulnerability has a CVSS 3.1 base score of 5.3, indicating a medium severity impact focused on availability. Oracle has addressed this vulnerability in their September 2026 Critical Security Patch Update.
AI Analysis
Technical Summary
CVE-2026-83480 is a vulnerability in the Helidon product of Oracle Fusion Middleware affecting the WebSocket component. It impacts supported versions 4.0.0 through 4.5.4. The flaw allows an unauthenticated attacker with network access via HTTP to cause a partial denial of service condition. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability. Oracle has released security patches for this vulnerability as part of their September 2026 Critical Security Patch Update.
Potential Impact
Successful exploitation of this vulnerability can result in a partial denial of service of the Helidon product, impacting availability but not confidentiality or integrity. The vulnerability is exploitable remotely without authentication, increasing risk if unpatched.
Mitigation Recommendations
Oracle has released security patches for this vulnerability in the September 2026 Critical Security Patch Update. Customers are strongly advised to apply these patches promptly to remediate the vulnerability. Remaining on actively supported versions and timely patching are recommended by Oracle. No additional mitigation steps are indicated beyond applying the official patch.
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: WebSocket). (CVE-2026-83480)
Description
A vulnerability in the WebSocket component of Oracle Fusion Middleware's Helidon product (versions 4.0.0 through 4.5.4) allows an unauthenticated attacker with network access via HTTP to cause a partial denial of service. The vulnerability has a CVSS 3.1 base score of 5.3, indicating a medium severity impact focused on availability. Oracle has addressed this vulnerability in their September 2026 Critical Security Patch Update.
CVSS v3.1
Score 5.3medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-83480 is a vulnerability in the Helidon product of Oracle Fusion Middleware affecting the WebSocket component. It impacts supported versions 4.0.0 through 4.5.4. The flaw allows an unauthenticated attacker with network access via HTTP to cause a partial denial of service condition. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability. Oracle has released security patches for this vulnerability as part of their September 2026 Critical Security Patch Update.
Potential Impact
Successful exploitation of this vulnerability can result in a partial denial of service of the Helidon product, impacting availability but not confidentiality or integrity. The vulnerability is exploitable remotely without authentication, increasing risk if unpatched.
Mitigation Recommendations
Oracle has released security patches for this vulnerability in the September 2026 Critical Security Patch Update. Customers are strongly advised to apply these patches promptly to remediate the vulnerability. Remaining on actively supported versions and timely patching are recommended by Oracle. No additional mitigation steps are indicated beyond applying the official patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-hvpf-xwmf-xgpx
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-83480"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aaa07db55bf5e2cf5ea2e39
Added to database: 09/16/2026, 03:07:07 UTC
Last enriched: 09/16/2026, 03:45:04 UTC
Last updated: 09/16/2026, 05:01:23 UTC
Views: 1
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