Oracle fixes over 900 vulnerabilities

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[TLP:CLEAR] Oracle fixes over 900 vulnerabilities

Oracle fixes over 900 vulnerabilities in its products as part of the Critical Security Patch Update. The most severe vulnerabilities are described below; the rest, as well as instructions for applying the fix, can be found at [1].

Oracle Database Server - RCE (CVE-2026-71063, CVE-2026-71064)

CVSS 9.6 (Critical)

An unauthenticated attacker from an adjacent network can use the TLS protocol to compromise the Portable Clusterware component in Oracle Database Server [1].

The vulnerability is present in product:

Oracle Database Server; >=19.3, <=19.32; >=21.3, <=21.23; >=23.4.0, <=23.26.3

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

More information:

CVE-2026-71063 at cve.org, NVD
CVE-2026-71064 at cve.org, NVD
CWE-284: Improper Access Control at cwe.mitre.org

The vulnerability was publicly disclosed 18. 8. 2026.

Oracle Database Server - unauthorized data modification (CVE-2026-71102)

CVSS 9.1 (Critical)

An unauthenticated remote attacker can use the HTTP protocol to modify data without authorization and make the Portable Clusterware component in Oracle Database Server unavailable [1].

The vulnerability is present in product:

Oracle Database Server; >=19.3, <=19.32; >=21.3, <=21.23; >=23.4.0, <=23.26.3

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

More information:

CVE-2026-71102 at cve.org, NVD
CWE-284: Improper Access Control at cwe.mitre.org

The vulnerability was publicly disclosed 18. 8. 2026.

Oracle Database Server - RCE (CVE-2026-71062)

CVSS 8.5 (High)

An authenticated remote attacker with low privileges can use the Oracle Net protocol to compromise the RDBMS component in Oracle Database Server [1].

The vulnerability is present in product:

Oracle Database Server; >=23.4.0, <=23.26.3

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

More information:

CVE-2026-71062 at cve.org, NVD
CWE-284: Improper Access Control at cwe.mitre.org

The vulnerability was publicly disclosed 18. 8. 2026.

Oracle MySQL Cluster - DoS (CVE-2026-60592)

CVSS 8.2 (High)

An unauthenticated remote attacker can use the MySQL protocol to partially modify data and make the NDB Operator component in Oracle MySQL Cluster unavailable [1].

The vulnerability is present in product:

Oracle MySQL Cluster; >=8.0.0, <=8.0.47; >=8.4.0, <=8.4.10; >=9.7.0, <=9.7.1

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

More information:

CVE-2026-60592 at cve.org, NVD
CWE-284: Improper Access Control at cwe.mitre.org

The vulnerability was publicly disclosed 18. 8. 2026.

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[TLP:CLEAR] Oracle fixes over 900 vulnerabilities

Oracle Database Server - RCE (CVE-2026-71063, CVE-2026-71064)

CVSS 9.6 (Critical)

Oracle Database Server - unauthorized data modification (CVE-2026-71102)

CVSS 9.1 (Critical)

Oracle Database Server - RCE (CVE-2026-71062)

CVSS 8.5 (High)

Oracle MySQL Cluster - DoS (CVE-2026-60592)

CVSS 8.2 (High)

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