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High Severity Vulnerability

This vulnerability has been rated as High severity. Immediate action is recommended.

CVE-2026-21997

High
Low Medium High Critical
8.5
CVSS Score
Published: Apr 21, 2026
Last Modified: Apr 21, 2026

Vulnerability 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).

CVSS Metrics

Common Vulnerability Scoring System

Vector String:

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
Attack Vector
N
Attack Complexity
L
Privileges Required
L
User Interaction
N
Scope
C
Confidentiality
L
Integrity
H
Availability
N

Available Security Patches

1 patch available from vendors

View All Patches
Oracle

CPUAPR2026

Oracle Critical Patch Update Advisory - April 2026

Severity
Critical
Released
Apr 21, 2026
Restart Required
Security Update

Severity Details

8.5
out of 10.0
High

Key Information

Published Date
April 21, 2026