CVE-2026-83351 Privilege escalation in Oracle Database Server
An unauthenticated attacker can compromise the Oracle Database Server RDBMS component, leading to full takeover of the database system.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-83351?
CVE-2026-83351 is a high-severity vulnerability in Oracle Database Server, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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).
Weakness: CWE-269
Which versions are affected by CVE-2026-83351?
How do I fix CVE-2026-83351?
No fix has been published for CVE-2026-83351 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-83351 being exploited?
There is no known exploitation of CVE-2026-83351 in the wild and no public exploit code.
Sources
Also known as GHSA-pfrj-7j99-7h44.