Vulnerability Report

CVE-2026-21939

Title: Takeover in Oracle Database Server SQLcl

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-21939.

CWE Category NVD-CWE-noinfo

Published Date Jan 20, 2026

Modified Date Jan 29, 2026

Exploit Status Not Found

Score 7.0 CVSS v3.1

Exploit Probability (EPSS)

0.02%

Vulnerability Summary

CVE-2026-21939: 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).

Impacted Vendors

oracle 1

ingres 1

Reference Links

https://www.oracle.com/security-alerts/cpujan2026.html

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.0

Attack Vector

LOCAL

Complexity

HIGH

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.0

Attack Vector

LOCAL

Complexity

HIGH

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-21939 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

January 29, 2026 MODIFIED

Vulnerability data updated via NVD.

January 29, 2026 MODIFIED

Vulnerability data updated via NVD.

January 26, 2026 MODIFIED

Vulnerability data updated via NVD.

January 20, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity HIGH

Privileges N/A

Interaction REQUIRED

CVSS Vector String


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

Affected Stack

No specific products linked.