CVE-2021-2173

MEDIUM

Oracle Database Server <19c - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-2173. PoCs published by emad-almousa.

AI-analyzed exploit summary The repository provides a reference to a detailed technical analysis of CVE-2021-2173, which involves metadata exposure in Oracle Database leading to information leakage. It includes links to a blog post and Oracle's advisory for further details.

Description

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).

Exploits (1)

nomisec WRITEUP
by emad-almousa · poc
https://github.com/emad-almousa/CVE-2021-2173

The repository provides a reference to a detailed technical analysis of CVE-2021-2173, which involves metadata exposure in Oracle Database leading to information leakage. It includes links to a blog post and Oracle's advisory for further details.

Classification
Writeup 90%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Oracle Database (versions affected per April 2021 CPU)
No auth needed
Prerequisites: Access to Oracle Database metadata
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Scores

CVSS v3 4.1
EPSS 0.0137
EPSS Percentile 68.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (4)
oracle/database_server 12.1.0.2
oracle/database_server 12.2.0.1
oracle/database_server 18c
oracle/database_server 19c
Published Apr 22, 2021
Tracked Since Feb 18, 2026