CVE-2026-62465: Oracle HRMS DoS Vulnerability

CVE-2026-62465 Overview

CVE-2026-62465 affects the Oracle Human Resources Management System (HRMS) US product within Oracle E-Business Suite. The flaw resides in the Internal Operations component and impacts supported versions 12.2.9 through 12.2.15. A low-privileged attacker with logon access to the infrastructure running Oracle HRMS can exploit this weakness to cause a complete denial of service, modify a subset of accessible data, and read a limited subset of data. The vulnerability is tracked under CWE-284: Improper Access Control and was published in Oracle's July 2026 Critical Patch Update.

Critical Impact
Authenticated local attackers can crash Oracle HRMS (US), tamper with HR data, and access sensitive employee records without additional user interaction.

Affected Products

Oracle E-Business Suite — Oracle HRMS (US) version 12.2.9
Oracle E-Business Suite — Oracle HRMS (US) versions 12.2.10 through 12.2.14
Oracle E-Business Suite — Oracle HRMS (US) version 12.2.15

Discovery Timeline

2026-07-21 - CVE-2026-62465 published to the National Vulnerability Database
2026-07-22 - Last updated in NVD database
July 2026 - Addressed in the Oracle Security Alert July 2026

Technical Details for CVE-2026-62465

Vulnerability Analysis

The vulnerability sits in the Internal Operations component of Oracle HRMS (US). An attacker requires local logon access to the server or infrastructure where Oracle HRMS executes. No user interaction is needed, and the attack complexity is low. Successful exploitation produces a hang or a frequently repeatable crash, resulting in complete availability loss. The same code path also permits unauthorized insert, update, or delete operations against a subset of HRMS data, along with unauthorized read access to a subset of data.

Because HRMS stores payroll, tax, and employee personally identifiable information, even limited write or read impact carries operational and regulatory consequences. The Exploit Prediction Scoring System places the current exploitation likelihood in the lower tier, but the low barrier to entry warrants prompt patching.

Root Cause

The issue maps to CWE-284: Improper Access Control. Internal Operations functionality does not adequately restrict which authenticated users can invoke sensitive operations. Oracle has not published module-level technical details beyond the advisory, but the CWE class indicates missing or insufficient authorization checks on privileged operations exposed to any logged-on account.

Attack Vector

The attack vector is local. An attacker must first authenticate to the host or environment where Oracle HRMS runs, then trigger the affected Internal Operations code path. Once invoked, the attacker can force the service into a repeatable crash and manipulate a subset of HRMS records. No cross-user interaction is required. Refer to the Oracle Security Alert July 2026 for vendor-provided technical context.

No verified public proof-of-concept exploit code is available at the time of publication.

Detection Methods for CVE-2026-62465

Indicators of Compromise

Unexpected crashes, hangs, or restarts of Oracle HRMS (US) processes on affected E-Business Suite hosts.
Anomalous INSERT, UPDATE, or DELETE statements against HRMS tables originating from low-privileged database sessions.
Local logon activity from service or maintenance accounts immediately preceding HRMS instability.

Detection Strategies

Enable Oracle Database auditing (AUDIT_TRAIL=DB,EXTENDED) on HRMS schemas to log DML activity from non-application accounts.
Baseline normal Internal Operations workflow patterns and alert on deviations from expected concurrent program executions.
Correlate Oracle E-Business Suite application logs with operating system authentication logs on the middle tier and database tier.

Monitoring Recommendations

Monitor process health for the Oracle HRMS concurrent manager and forms services with alerting on repeated crash loops.
Track privilege changes and interactive logons on Oracle E-Business Suite application and database servers.
Forward Oracle audit and listener logs to a centralized analytics platform for retention and correlation.

How to Mitigate CVE-2026-62465

Immediate Actions Required

Apply the July 2026 Critical Patch Update from Oracle to all Oracle HRMS (US) instances running versions 12.2.9 through 12.2.15.
Inventory every Oracle E-Business Suite environment, including non-production, to confirm patch coverage.
Restrict interactive logon on Oracle E-Business Suite hosts to a minimal set of administrators.

Patch Information

Oracle addressed CVE-2026-62465 in the July 2026 Critical Patch Update. Patches, version metadata, and applicability notes are published in the Oracle Security Alert July 2026. Customers should follow Oracle's documented pre-install, install, and post-install steps for E-Business Suite 12.2.x and validate HRMS functionality in a staging environment before promoting to production.

Workarounds

Limit local and remote shell access to Oracle E-Business Suite servers to named administrators until patches are applied.
Remove or disable unused Oracle application user accounts that possess logon rights to the HRMS environment.
Enforce strong authentication and session controls for any account able to reach the HRMS middle tier or database.

bash

# Verify installed Oracle E-Business Suite patch level (run as the applmgr user)
. $APPL_TOP/APPS<CONTEXT_NAME>.env
adop -status
sqlplus apps/<password> <<EOF
SELECT bug_number, last_update_date
  FROM ad_bugs
 WHERE bug_number IN ('<JULY_2026_HRMS_PATCH_ID>')
 ORDER BY last_update_date DESC;
EXIT;
EOF