Oracle FLEXCUBE Investor Servicing 14.5.0.15.0/14.7.0.8.0/14.8.0.1.0 Oracle Financial Service improper authorization

Summaryinfo

A vulnerability classified as critical has been found in Oracle FLEXCUBE Investor Servicing 14.5.0.15.0/14.7.0.8.0/14.8.0.1.0. This affects an unknown function of the component Oracle Financial Service. Performing a manipulation results in improper authorization. This vulnerability is known as CVE-2026-21973. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Oracle FLEXCUBE Investor Servicing 14.5.0.15.0/14.7.0.8.0/14.8.0.1.0. This affects some unknown processing of the component Oracle Financial Service. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Vulnerability in the Oracle FLEXCUBE Investor Servicing product of Oracle Financial Services Applications (component: Security Management System). Supported versions that are affected are 14.5.0.15.0, 14.7.0.8.0 and 14.8.0.1.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle FLEXCUBE Investor Servicing. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle FLEXCUBE Investor Servicing accessible data as well as unauthorized access to critical data or complete access to all Oracle FLEXCUBE Investor Servicing accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

It is possible to read the advisory at oracle.com. This vulnerability is uniquely identified as CVE-2026-21973 since 01/05/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/21/2026). The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-3539). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Banking Software

Vendor

• Oracle

Name

• FLEXCUBE Investor Servicing

Version

• 14.5.0.15.0
• 14.7.0.8.0
• 14.8.0.1.0

License

• commercial

Website

• Vendor: https://www.oracle.com

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion