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CVE-2026-21997

8.5 · HIGH

Vulnerability in the Oracle Life Sciences Empirica Signal product of Oracle Life Science Applications (component: Common Core).

Published Apr 21, 2026CWE-284EPSS 0.20%

Overview

CVE-2026-21997 is a high-severity vulnerability. It was published on April 21, 2026 and has a CVSS 3.1 base score of 8.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Vulnerability in the Oracle Life Sciences Empirica Signal product of Oracle Life Science Applications (component: Common Core). Supported versions that are affected are 9.2.1-9.2.3. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Life Sciences Empirica Signal. While the vulnerability is in Oracle Life Sciences Empirica Signal, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Life Sciences Empirica Signal accessible data as well as unauthorized read access to a subset of Oracle Life Sciences Empirica Signal accessible data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N).

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.oracle.com/security-alerts/cpuapr2026.html

How CyberStrike helps

Frequently asked questions

What is CVE-2026-21997?

CVE-2026-21997 is a high-severity vulnerability. It was published on April 21, 2026 and has a CVSS 3.1 base score of 8.5 (HIGH).

How severe is CVE-2026-21997?

This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-21997?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-21997?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-21997 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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