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CVE-2021-2173

MediumPublished

Vulnerability in the Recovery component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1, 18c and 19c. Easily...

Published: Apr 22, 2021
Updated: Sep 26, 2024
Assigning CNA: oracle
Evidence observed: Aug 8, 2026

Primary CVSS

4.1/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N

EPSS probability estimate

1.4%

Low · next 30 days

Percentile: 70.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Vulnerability in the Recovery component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1, 18c and 19c. Easily exploitable vulnerability allows high privileged attacker having DBA Level Account privilege with network access via Oracle Net to compromise Recovery. While the vulnerability is in Recovery, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Recovery accessible data. CVSS 3.1 Base Score 4.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N).

Sources

CVE-2021-2173PoC
Proof-of-concept exploit for CVE-2021-2173, demonstrating Oracle Database metadata exposure via broken PDB isolation. Includes technical details and advisory references.

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