Listen to this Post
How CVE-2026-62546 Works
CVE-2026-62546 is a critical improper access control vulnerability residing in the Web Utilities component of Oracle Applications Framework (OAF) within Oracle E-Business Suite. The flaw affects supported versions 12.2.8 through 12.2.15 and is classified as easily exploitable due to its low attack complexity and requirement for only network access via HTTP.
The vulnerability stems from insufficient authorization checks within the Web Utilities module. A high-privileged attacker—such as a user with administrative or application-level roles—can craft malicious HTTP requests that bypass internal security controls. Because the flaw exists in a core framework component, successful exploitation does not merely compromise the OAF instance itself but also impacts additional products that share the same environment, a condition reflected in the CVSS scope change metric (S:C).
Upon successful exploitation, the attacker gains the ability to execute arbitrary operations with the full privileges of the OAF process. This includes reading sensitive configuration files, modifying application data, and disrupting availability. The attack chain typically involves:
1. Authentication – The attacker must possess high-privileged credentials (e.g., a functional administrator or integration user) to access the OAF web interface.
2. Crafted Request – Using the authenticated session, the attacker sends a specially manipulated HTTP request to a vulnerable Web Utilities endpoint. The exact parameter or function remains undisclosed by Oracle, but the manipulation leads to privilege escalation.
3. Privilege Escalation – The OAF processes the request without proper validation, allowing the attacker to elevate their privileges beyond the intended scope.
4. Lateral Movement – Due to the scope change, the attacker can pivot to other Oracle E-Business Suite components and integrated products, potentially compromising the entire application tier.
The CVSS 3.1 vector AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H yields a base score of 9.1 (Critical), indicating severe confidentiality, integrity, and availability impacts. The EPSS score is 0.3 with a 20% percentile, suggesting moderate exploitability in the wild. As of the latest reports, no active exploitation has been observed, and no public proof-of-concept exploit is available.
Oracle addressed this vulnerability in the July 2026 Critical Patch Update (CPU). Administrators are strongly urged to apply the CPU patches immediately, as the vulnerability allows a complete takeover of the Oracle Applications Framework with cascading effects on other products.
DailyCVE Form:
Platform: Oracle E-Business Suite
Version: 12.2.8 – 12.2.15
Vulnerability: Improper Access Control
Severity: Critical (CVSS 9.1)
date: 2026-07-21
Prediction: 2026-07-16 (CPU date)
What Undercode Say: Analytics
Check current OAF version sqlplus apps/apps_password @$AD_TOP/sql/adzddriv.sql Identify if Web Utilities component is exposed curl -k -I https://<ebs-host>:<port>/OA_HTML/ 2>/dev/null | grep -i "Server:" Audit high-privileged accounts with OAF access SELECT USER_NAME, DESCRIPTION, START_DATE, END_DATE FROM FND_USER WHERE END_DATE IS NULL AND (SECURITY_GROUP_ID = 0 OR SECURITY_GROUP_ID IS NULL) AND USER_NAME IN (SELECT GRANTEE FROM DBA_ROLE_PRIVS WHERE GRANTED_ROLE = 'APPS_ADMIN');
Key Analytics Insights:
- CVSS 3.1 Base Score: 9.1 (Critical)
- Attack Vector: Network (AV:N)
- Attack Complexity: Low (AC:L)
- Privileges Required: High (PR:H)
- User Interaction: None (UI:N)
- Scope: Changed (S:C) – impacts additional products
- Confidentiality Impact: High (C:H)
- Integrity Impact: High (I:H)
- Availability Impact: High (A:H)
- EPSS Score: 0.3 (20th percentile)
- Exploit Price Estimate: $5,000 – $25,000
- CTI Interest Score: 0.62+
- CISA KEV: Not listed
- Automatability: None (requires high privileges, not suitable for automated scanning)
Exploit
As of the latest intelligence, no public exploit or proof-of-concept is available for CVE-2026-62546. However, the vulnerability is considered easily exploitable by a high-privileged attacker with network access via HTTP. The following pseudo-code illustrates the theoretical exploitation flow:
Step 1: Authenticate as high-privileged user (e.g., apps_admin) curl -X POST https://<ebs-host>/OA_HTML/jsp/login.jsp \ -d "username=apps_admin&password=<password>" \ -c cookies.txt Step 2: Send crafted HTTP request to vulnerable Web Utilities endpoint (Exact endpoint and parameters are undisclosed; this is illustrative) curl -X GET "https://<ebs-host>/OA_HTML/WebUtilities?func=privilege_escalation&target=<malicious_payload>" \ -b cookies.txt \ -H "User-Agent: Mozilla/5.0" \ --output response.html Step 3: If successful, the response may contain elevated session tokens or allow arbitrary command execution within the OAF context
Exploitability Details:
- Required Privileges: High (administrative or application-level role)
- Attack Vector: Network (HTTP)
- User Interaction: None
- Scope Change: Yes – impacts additional Oracle products
- Current Exploit Status: None publicly available
Protection
Immediate Mitigation:
- Apply Oracle July 2026 Critical Patch Update (CPU) – This is the only complete fix. The patches are available via My Oracle Support for E-Business Suite 12.2.
- Restrict Network Access – Limit access to the OAF application tier to only trusted, audited administrative IP ranges.
- Enforce Least Privilege – Review and reduce high-privileged accounts. Ensure only necessary users have administrative or application-level roles.
- Monitor OAF Logs – Enable detailed logging for Web Utilities and monitor for anomalous HTTP requests.
Verification Commands:
Check if July 2026 CPU patches are applied $ORACLE_HOME/OPatch/opatch lsinventory | grep -i "July 2026" Verify EBS version and patch level sqlplus apps/apps_password <<EOF SELECT RELEASE_NAME, PATCH_LEVEL FROM FND_PRODUCT_GROUPS; EOF Restrict OAF access via firewall (example using iptables) iptables -A INPUT -p tcp --dport <oaf_port> -s <trusted_subnet> -j ACCEPT iptables -A INPUT -p tcp --dport <oaf_port> -j DROP
Long-term Hardening:
- Regularly audit all high-privileged accounts.
- Implement Web Application Firewall (WAF) rules to detect and block anomalous HTTP patterns targeting OAF endpoints.
- Subscribe to Oracle Security Alerts for timely patch notifications.
Impact
Technical Impact:
- Complete Takeover – Attacker gains full control over the Oracle Applications Framework instance.
- Data Breach – High confidentiality impact allows reading of sensitive application data, including financial, HR, and customer information.
- System Disruption – High availability impact enables denial-of-service or ransomware attacks.
- Lateral Movement – Scope change allows the attacker to compromise additional Oracle E-Business Suite products and integrated systems.
Business Impact:
- Financial Loss – Potential for fraud, data theft, and regulatory fines.
- Reputational Damage – Loss of customer trust and brand integrity.
- Operational Downtime – Critical business processes relying on Oracle E-Business Suite may be disrupted.
- Compliance Violations – Breaches of GDPR, HIPAA, SOX, and other regulations.
Affected Industries (most common):
Finance, Healthcare, Government, Manufacturing, Retail, and Telecommunications.
Risk Summary:
- CVSS Base Score: 9.1 (Critical)
- Exploitability: Easy (given high-privileged credentials)
- Remediation Effort: Medium (patch application requires planned maintenance window)
- Urgency: High – patch immediately or apply compensating controls
🎯Let’s Practice Exploiting & Learn Patching For Free:
🎓 Live Courses & Certifications:
Join Undercode Academy for Verified Certifications
🚀 Request a Custom Project:
Secure, high-velocity infrastructure and disruptive technological engineering. Contact our engineering team for high-tier development and proprietary systems:
[email protected]
💎 Smart Architecture | 🛡️ Secure by Design | ⭐ Trusted by Thousands
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
