What is CVE-2026-83333?

CVE-2026-83333 is a high-severity vulnerability in Oracle Corporation Database Server, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-09-15.

How severe is CVE-2026-83333?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Oracle Corporation Database Server

CVE-2026-83333

Vulnerability in the Oracle Net Services component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise Oracle Net Services. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Net Services. 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).

Vulnerability class: DoS (Denial of Service)

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Oracle Corporation Database Server

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

secalert_us@oracle.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-83333?: CVE-2026-83333 is a high-severity vulnerability in Oracle Corporation Database Server, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-09-15.
How severe is CVE-2026-83333?: High severity. CVSS v3 base score is 7.5 out of 10.