CVE-2026-83351

EUVD-2026-79704
Vulnerability in the RDBMS component of Oracle Database Server.  Supported versions that are affected are 23.4.0-23.26.3. Difficult to exploit vulnerability allows unauthenticated attacker 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 8.1 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
oracleCNA
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
oracledatabase
23.4.0 ≤
𝑥
≤ 23.26.3
CNA
References
https://www.oracle.com/security-alerts/cspusep2026.html