by Kastro
Paper/Archive/CVE-2026-71102

CVE-2026-71102

Oracle Corporation Oracle Database Server — Vulnerability in the Portable Clusterware component of Oracle Database Server.

EPSS 0.4%CVSS 9.1
critical.is priorityof 100
35
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 38.9.389 × 207.8No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Vulnerability in the Portable Clusterware component of Oracle Database Server. Supported versions that are affected are 19.3-19.32, 21.3-21.23 and 23.4.0-23.26.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Portable Clusterware. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Portable Clusterware accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Portable Clusterware. CVSS 3.1 Base Score 9.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H).

Affected

ProductAffectedFixed inSource
Oracle Database Server19.3 – 19.32–CNA
Oracle Database Server21.3 – 21.23–CNA
Oracle Database Server23.4.0 – 23.26.3–CNA

Scores by source

oracle (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

advisoryoracle.com/security-alerts/cspuaug2026.html