CVE-2026-21939
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-20

Last updated on: 2026-01-29

Assigner: Oracle

Description
Vulnerability in the SQLcl component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.0. Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where SQLcl executes to compromise SQLcl. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of SQLcl. CVSS 3.1 Base Score 7.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).
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Meta Information
Published
2026-01-20
Last Modified
2026-01-29
Generated
2026-06-16
AI Q&A
2026-01-21
EPSS Evaluated
2026-06-15
NVD
CVE-2026-21939
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
oracle database_server From 23.4 (inc) to 23.26 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-NVD-CWE-noinfo
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Executive Summary

This vulnerability exists in the SQLcl component of Oracle Database Server versions 23.4.0 to 23.26.0. It is difficult to exploit and requires an unauthenticated attacker to have logon access to the infrastructure where SQLcl runs. Additionally, successful exploitation requires human interaction from someone other than the attacker. If exploited, the attacker can take over SQLcl.

Impact Analysis

If successfully exploited, this vulnerability can lead to a complete takeover of SQLcl, impacting confidentiality, integrity, and availability of the system. This means sensitive data could be exposed or altered, and system operations could be disrupted.

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