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Vulnerability record · CVE-2026-83350 · published 15 September 2026

CVE-2026-83350: Uncontrolled resource consumption vulnerability

Vulnerability in the Oracle Net Services component of Oracle Database Server. Supported versions that are affected are 21.3-21.23 and 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).

7.5 CVSS 3.1 High EPSS 0.46% · top 62.6% CWE-400 · Uncontrolled resource consumption Awaiting Analysis
7.5CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
16 Sep 2026Last modified by NVD

Description

Vulnerability in the Oracle Net Services component of Oracle Database Server. Supported versions that are affected are 21.3-21.23 and 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).

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

LinkTags
https://www.oracle.com/security-alerts/cspusep2026.html

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Source: NIST National Vulnerability Database (record CVE-2026-83350), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.