CVE-2026-62561: Oracle HRMS Privilege Escalation Flaw

CVE-2026-62561 Overview

CVE-2026-62561 is a high-severity privilege escalation vulnerability in the Oracle HRMS (US) product of Oracle E-Business Suite. The flaw resides in the Internal Operations component and affects supported versions 12.2.3 through 12.2.15. A low-privileged attacker with local logon access to the infrastructure hosting Oracle HRMS (US) can exploit this weakness to fully compromise the application. The vulnerability is categorized under [CWE-269: Improper Privilege Management].

Critical Impact
Successful exploitation results in complete takeover of Oracle HRMS (US), impacting confidentiality, integrity, and availability of sensitive human resources data.

Affected Products

Oracle E-Business Suite — Oracle HRMS (US) version 12.2.3
Oracle E-Business Suite — Oracle HRMS (US) versions 12.2.4 through 12.2.14
Oracle E-Business Suite — Oracle HRMS (US) version 12.2.15

Discovery Timeline

2026-07-21 - CVE CVE-2026-62561 published to NVD
2026-07-22 - Last updated in NVD database

Technical Details for CVE-2026-62561

Vulnerability Analysis

CVE-2026-62561 affects the Internal Operations component of Oracle HRMS (US), a module within Oracle E-Business Suite that manages payroll, benefits, and personnel records. Oracle classifies the flaw as easily exploitable, requiring only local access and low privileges with no user interaction. An authenticated attacker on the host running Oracle HRMS (US) can leverage the weakness to elevate privileges and take over the application entirely. The scope of compromise includes read, modify, and disruption capabilities across HRMS-managed data. Public exploit code is not currently available, and the EPSS probability remains low.

Root Cause

The issue maps to [CWE-269: Improper Privilege Management]. Oracle has not disclosed low-level implementation details, but the classification indicates the affected component fails to enforce correct privilege boundaries. A user with limited rights on the host can perform operations that should be restricted to higher-privileged HRMS accounts or system administrators.

Attack Vector

Exploitation requires local logon to the infrastructure where Oracle HRMS (US) executes. The attacker must already possess low-level credentials on the underlying operating system or application tier. From that position, the attacker interacts with the Internal Operations component to escalate privileges within Oracle HRMS (US). No end-user interaction is required, and the attack does not cross a trust boundary outside the affected component.

Oracle has not published proof-of-concept code. Refer to the Oracle July 2026 Security Alert for vendor-specific technical guidance.

Detection Methods for CVE-2026-62561

Indicators of Compromise

Unexpected privilege changes on HRMS application accounts or database roles tied to the Internal Operations component.
Local logon sessions from non-administrative users followed by execution of HRMS administrative concurrent programs.
Unusual modifications to FND_USER, FND_RESPONSIBILITY, or payroll-related tables outside change-management windows.

Detection Strategies

Enable Oracle E-Business Suite audit trails (AuditTrail:Activate profile) for HRMS responsibilities and Internal Operations transactions.
Correlate operating system authentication events on the application tier with subsequent HRMS session activity to detect low-privileged pivots.
Baseline normal concurrent request submissions and alert on anomalous requests from accounts without HR administrator responsibilities.

Monitoring Recommendations

Forward Oracle E-Business Suite audit logs, database audit records, and OS authentication logs to a centralized SIEM for correlation.
Monitor changes to responsibilities, menus, and function security grants within HRMS.
Review shell access and sudo usage on application-tier hosts running Oracle HRMS (US).

How to Mitigate CVE-2026-62561

Immediate Actions Required

Apply the patches distributed in the Oracle Critical Patch Update for July 2026 to all Oracle E-Business Suite environments running affected HRMS versions.
Inventory all Oracle E-Business Suite instances between versions 12.2.3 and 12.2.15 and confirm patch status.
Restrict local logon access to Oracle HRMS (US) application-tier hosts to a minimal set of administrators.

Patch Information

Oracle addressed CVE-2026-62561 in the Oracle July 2026 Security Alert. Administrators should download and apply the HRMS component fixes for Oracle E-Business Suite 12.2.3–12.2.15 following Oracle's standard patching procedure for the application tier and database.

Workarounds

Enforce least privilege on the operating system hosting Oracle HRMS (US) to reduce the pool of accounts that can perform local logon.
Segment the E-Business Suite application tier from general-purpose systems and require jump-host access with strong authentication.
Increase audit logging and monitoring on the Internal Operations component until patches are applied.

bash

# Verify Oracle E-Business Suite version and applied patches
sqlplus apps/<password> <<EOF
SELECT release_name FROM fnd_product_groups;
SELECT bug_number, last_update_date
  FROM ad_bugs
 WHERE bug_number IN ('<CPU_JUL2026_BUG_ID>')
 ORDER BY last_update_date DESC;
EOF