CVE-2026-83330

highpriority · track · 30EPSS 0.005 · 40 %ileDENLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.47% (40th) EPSS

CVSS 7.5 · high

Is it mine?

31 products

Check your exposure

Who says so?

2 sources

cert_bund · ncsc_nl

EPSS · scored 2026-10-27

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).

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · secalert_us@oracle.com USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · NCSC-NL NL

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400US

affected products (31)

Products and version ranges known to be affected.

Oracle Fusion Middleware 12.2.1.19.0all versionscert_bundDEcpe:/a:oracle:fusion_middleware:12.2.1.19.0
Oracle Fusion Middleware 12.2.1.4.0all versionscert_bundDEcpe:/a:oracle:fusion_middleware:12.2.1.4.0
Oracle Fusion Middleware 14.1.1.0.0all versionscert_bundDEcpe:/a:oracle:fusion_middleware:14.1.1.0.0
Oracle Fusion Middleware 14.1.2.0.0all versionscert_bundDEcpe:/a:oracle:fusion_middleware:14.1.2.0.0
Oracle Fusion Middleware 14.1.2.1.0all versionscert_bundDEcpe:/a:oracle:fusion_middleware:14.1.2.1.0
Oracle Fusion Middleware 15.1.1.0.0all versionscert_bundDEcpe:/a:oracle:fusion_middleware:15.1.1.0.0
Oracle Fusion Middleware 3.0.0-3.2.20all versionscert_bundDEcpe:/a:oracle:fusion_middleware:3.0.0-3.2.20
Oracle Fusion Middleware 4.0.0-4.5.4all versionscert_bundDEcpe:/a:oracle:fusion_middleware:4.0.0-4.5.4
Oracle Helidon≤ vers:unknown/*ncsc_nlNL
Oracle Oracle Access Manager≤ vers:unknown/*ncsc_nlNL
Oracle Oracle Coherence≤ vers:unknown/*ncsc_nlNL
Oracle Oracle Data Integrator≤ vers:unknown/*ncsc_nlNL
Oracle Oracle Forms≤ vers:unknown/*ncsc_nlNL
Oracle Oracle Fusion Middleware Control≤ vers:unknown/*ncsc_nlNL
Oracle Oracle Identity Manager≤ vers:unknown/*ncsc_nlNL
Oracle Oracle Identity Manager Connector≤ vers:unknown/*ncsc_nlNL
Oracle Oracle Internet Directory≤ vers:unknown/*ncsc_nlNL
Oracle Oracle JDeveloper≤ vers:unknown/*ncsc_nlNL
Oracle Oracle Managed File Transfer≤ vers:unknown/*ncsc_nlNL
Oracle Oracle Middleware Common Libraries and Tools≤ vers:unknown/*ncsc_nlNL

showing 20 of 31

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0372Kwetsbaarheden verholpen in Oracle Fusion MiddlewareNL2026-09-16csaf · ncsc_nlNL
Oracle heeft 153 kwetsbaarheden verholpen in diverse Oracle Fusion Middleware-producten, waaronder Helidon, Oracle Access Manager, Oracle Coherence, Oracle Data Integrator, Oracle Forms, Oracle Fusion Middleware Control, Oracle Identity Manager, Oracle Identity Manager Connector, Oracle Internet Directory, Oracle JDeveloper, Oracle Managed File Transfer, Oracle Middleware Common Libraries and Tools, Oracle Platform Security for Java, Oracle Web Services Manager, Oracle WebCenter Content, Oracle WebCenter Enterprise Capture, Oracle WebCenter Portal, Oracle WebCenter Sites, Oracle WebLogic Server en Service Delivery Platform.
WID-SEC-W-2026-3396Oracle Fusion Middleware: Mehrere SchwachstellenDeutsch2026-09-15csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Fusion Middleware ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.

sources

Which sources assert this record, and when.

cert_bund ncsc_nl NVD CVE.org MITRE

published 2026-09-15modified 2026-09-28

references (1) nvd

External citations — patches, advisories, analysis.

https://www.oracle.com/security-alerts/cspusep2026.htmlVendor Advisory

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan