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CVE-2026-47039 Oracle CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-21T22:17:09.547Z and has not been modified since then. The CVE-2026-47039 vulnerability is in the Java VM component of Oracle Database Server, affecting versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2. It is easily exploitable by low-privileged attackers with Create Session privilege and network access via Oracle Net, potentially leading to unauthorized creation, deletion, or modification of critical data or all Java VM accessible data. The CVSS 3.1 Base Score is 6.5 (Integrity impacts), with a vector of CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N. Oracle Database Server administrators, security teams, and IT professionals responsible for maintaining and securing Oracle Database Server installations, especially those using affected versions, should prioritize patching. The vulnerability allows low-privileged attackers with Create Session privilege and network access via Oracle Net to compromise Java VM, potentially leading to unauthorized data modification. The CVSS 3.1 Base Score is 6.5, with an Integrity impact. Medium priority is given the CVSS score of 6.5 and the potential for unauthorized data modification.

Vendor
Oracle
Product
Database Server
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-21
Original CVE updated
2026-08-06
Advisory published
2026-07-21
Advisory updated
2026-08-06

Who should care

Oracle Database Server administrators, security teams, and IT professionals responsible for maintaining and securing Oracle Database Server installations, especially those using affected versions.

Technical summary

The CVE-2026-47039 vulnerability is in the Java VM component of Oracle Database Server, affecting versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2. It is easily exploitable by low-privileged attackers with Create Session privilege and network access via Oracle Net, potentially leading to unauthorized creation, deletion, or modification of critical data or all Java VM accessible data. The CVSS 3.1 Base Score is 6.5 (Integrity impacts), with a vector of CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

Defensive priority

Medium priority given the CVSS score of 6.5 and the potential for unauthorized data modification.

Recommended defensive actions

  • Inventory and verify affected Oracle Database Server versions.
  • Apply vendor patches or updates as recommended by Oracle.
  • Implement compensating controls to monitor and restrict access to critical data.
  • Review and adjust network access controls to limit Oracle Net access.
  • Monitor for suspicious activity related to Java VM and Oracle Database Server.

Evidence notes

The CVE-2026-47039 vulnerability affects Oracle Database Server versions 19.3-19.31, 21.3-21.22, and 23.4.0-23.26.2. It allows low-privileged attackers with Create Session privilege and network access via Oracle Net to compromise Java VM, potentially leading to unauthorized data modification. The CVSS 3.1 Base Score is 6.5, with an Integrity impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-47039 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-47039

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-47039 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-47039

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.