AI and data stack advisories

Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

OracleCVE-2026-71063

Oracle Database Server: unauthenticated attacker could the physical...

Oracle

CVE-2026-71063 · Published Aug 18, 2026 · updated Aug 20, 2026

Critical9.6
No fix yet
Oracle advisory

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 access to the physical communication segment attached to the hardware where the Portable Clusterware executes to compromise Portable Clusterware. While the vulnerability is in Portable Clusterware, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Portable Clusterware. CVSS 3.1 Base Score 9.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

Affected versions

PackageAffectedFixed in
Oracle Database Server
Product
>= 19.3, <= 19.32No fix yet
>= 21.3, <= 21.23No fix yet
>= 23.4.0, <= 23.26.3No fix yet
Details and references
CVSS 3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-284

More Oracle advisories

All Oracle