CVE-2026-83271CWE-269privilege-escalation

CVE-2026-83271

High · published September 16, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
35.0
In the wild
Unconfirmed
What it is

Vulnerability in the RDBMS 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 low privileged attacker having Execute on DBMS_REDEFINITION privilege with network access via Oracle Net to compromise RDBMS. Successful attacks of this vulnerability can result in takeover of RDBMS. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00417 · 35.0th percentile
Weakness
CWE-269 · Improper Privilege Management
Published
2026-09-16T00:18Z
References (1)
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 15 SEP 20:04Z
    Vulnerability in the RDBMS component of Oracle Database Server
    cvelistv5