Improper input validation in Oracle Database Server - CVE-2026-83088
Published: November 8, 2026
Vulnerability identifier: #VU161920
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-83088
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote authenticated user to a crash the entire system.
The vulnerability exists due to improper input validation within the RDBMS in Oracle Database Server. A remote authenticated user can exploit this vulnerability to a crash the entire system.
Affected software
Oracle Database Server
How to mitigate CVE-2026-83088
Install updates from vendor's website.