What is the CVSS score of CVE-2026-21973?

CVE-2026-21973 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2026-21973?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Flexcube Investor Servicing CVE-2026-21973

HIGH

2026-01-20 secalert_us@oracle.com

Oracle Flexcube Investor Servicing

8.1

CVSS 3.1 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Authenticate with low-privilege user credentials
Exploit

Send crafted HTTP request to Security Management System
Execution

Bypass authorization checks
Impact

Modify or delete critical data in FLEXCUBE

Vulnerability Assessment

Exploitation Conditions	Low-privileged user account with network HTTP access to Oracle FLEXCUBE Investor Servicing versions 14.5.0.15.0, 14.7.0.8.0, or 14.8.0.1.0. Security Management System component must be accessible and vulnerable to authorization bypass.
Impact	CVSS 8.1 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitation no authentication required. Exploitable via remote/network.
Exploit ScenarioDerived	A remote attacker without authentication could exploit this vulnerability to unauthorized creation, deletion or modification access to critical data or all O.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Mar 12, 2026

Flexcube Investor Servicing versions up to 14.5.0.15.0 contains a vulnerability that allows attackers to unauthorized creation, deletion or modification access to critical data or all O (CVSS 8.1).

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

affects Flexcube Investor Servicing. 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 dat

Know when Flexcube Investor Servicing gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 8.1 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

DescriptionCVE.org

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).

Executive ViewAI

Why It Matters

CVE-2026-21973 presents notable security risk rated CVSS 8.1. Successful exploitation could significantly impact the confidentiality, integrity, or availability of affected systems. Organizations should apply vendor updates when available and consider compensating controls in the interim.

Business Impact: High

Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score

0.1%

Top 76% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +40

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Affected Products (CPE)CVE.org

cpe:2.3:a:oracle:flexcube_investor_servicing:14.5.0.15.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:flexcube_investor_servicing:14.7.0.8.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:flexcube_investor_servicing:14.8.0.1.0:*:*:*:*:*:*:*

More in Flexcube Investor Servicing

View all

CVE-2017-5645 CRITICAL Act Now POC

9.8 Apr 17

In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events

CVE-2021-2351 HIGH This Week POC

8.3 Jul 21

Vulnerability in the Advanced Networking Option component of Oracle Database Server. Rated high severity (CVSS 8.3), thi

CVE-2018-1000632 HIGH This Week POC

7.5 Aug 20

dom4j version prior to version 2.1.1 contains a CWE-91: XML Injection vulnerability in Class: Element. Rated high severi

CVE-2019-10219 MEDIUM This Month POC

6.1 Nov 08

A vulnerability was found in Hibernate-Validator. Rated medium severity (CVSS 6.1), this vulnerability is remotely explo

CVE-2019-13990 CRITICAL Act Now

9.8 Jul 26

initDocumentParser in xml/XMLSchedulingDataProcessor.java in Terracotta Quartz Scheduler through 2.3.0 allows XXE attack

CVE-2016-8315 HIGH This Week

8.1 Jan 27

Vulnerability in the Oracle FLEXCUBE Investor Servicing component of Oracle Financial Services Applications (subcomponen

CVE-2020-14569 HIGH This Week

8.1 Jul 15

Vulnerability in the Oracle FLEXCUBE Investor Servicing product of Oracle Financial Services Applications (component: In

CVE-2019-2841 HIGH This Week

8.1 Jul 23

Vulnerability in the Oracle FLEXCUBE Investor Servicing component of Oracle Financial Services Applications (subcomponen

CVE-2018-3035 HIGH This Week

8.1 Jul 18

Vulnerability in the Oracle FLEXCUBE Investor Servicing component of Oracle Financial Services Applications (subcomponen

CVE-2019-12402 HIGH This Week

7.5 Aug 30

The file name encoding algorithm used internally in Apache Commons Compress 1.15 to 1.18 can get into an infinite loop w

CVE-2020-2723 HIGH This Week

7.1 Jan 15

Vulnerability in the Oracle FLEXCUBE Investor Servicing product of Oracle Financial Services Applications (component: In

CVE-2018-2746 HIGH This Week

7.1 Apr 19

Vulnerability in the Oracle Banking Corporate Lending component of Oracle Financial Services Applications (subcomponent:

References

Advisories & patches

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

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back