CVE-2025-61764 Overview
CVE-2025-61764 is an information disclosure vulnerability in the Core component of Oracle WebLogic Server, part of Oracle Fusion Middleware. An unauthenticated remote attacker can send crafted HTTP requests to read a subset of data accessible to the WebLogic Server. The vulnerability affects supported versions 12.2.1.4.0, 14.1.1.0.0, and 14.1.2.0.0. Oracle addressed the flaw in the Oracle Security Alert October 2025. The weakness is categorized under [CWE-200] Exposure of Sensitive Information to an Unauthorized Actor.
Critical Impact
Unauthenticated network attackers can read a subset of WebLogic Server data over HTTP without user interaction, exposing sensitive application information.
Affected Products
- Oracle WebLogic Server 12.2.1.4.0
- Oracle WebLogic Server 14.1.1.0.0
- Oracle WebLogic Server 14.1.2.0.0
Discovery Timeline
- 2025-10-21 - CVE-2025-61764 published to NVD
- October 2025 - Oracle released a security patch in the Oracle Critical Patch Update
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-61764
Vulnerability Analysis
The flaw resides in the Core component of Oracle WebLogic Server. It allows an unauthenticated attacker with network access via HTTP to compromise confidentiality of a subset of accessible server data. Exploitation does not require user interaction or elevated privileges, and the attack complexity is low. Successful exploitation only impacts confidentiality; integrity and availability remain unaffected. The scope is unchanged, meaning the disclosure stays within the security boundary of the WebLogic Server process.
Root Cause
The underlying weakness is classified as [CWE-200] Exposure of Sensitive Information to an Unauthorized Actor. The Core component of WebLogic Server fails to properly restrict access to certain data returned over HTTP. Oracle did not publish detailed technical internals in its advisory, but the classification indicates that server responses expose information that should require authentication or authorization.
Attack Vector
The attacker interacts remotely with the WebLogic Server HTTP listener. No credentials, tokens, or prior foothold are required. By issuing crafted HTTP requests to exposed WebLogic endpoints, the attacker can retrieve data that normally would be shielded by authentication. Because WebLogic instances are frequently exposed to internal networks and, in some deployments, to the internet, the attack surface is broad in enterprise environments.
No verified public exploit code, proof-of-concept, or CISA Known Exploited Vulnerabilities listing is associated with this CVE at the time of publication. Refer to the Oracle Security Alert October 2025 for vendor-authoritative technical details.
Detection Methods for CVE-2025-61764
Indicators of Compromise
- Unauthenticated HTTP requests to WebLogic administrative or application endpoints originating from unexpected external IP addresses.
- Anomalous response sizes or repeated probing of WebLogic URIs such as /console, /wls-wsat/, or /bea_wls_internal/.
- Web server access logs showing scanning patterns consistent with WebLogic version enumeration.
Detection Strategies
- Baseline expected HTTP traffic to WebLogic listeners and alert on deviations from normal user-agent, geolocation, or request frequency patterns.
- Deploy web application firewall rules that flag unauthenticated access attempts to sensitive WebLogic paths.
- Correlate access logs with authentication logs to identify successful data retrieval without corresponding authentication events.
Monitoring Recommendations
- Enable verbose HTTP access logging on WebLogic Server and forward logs to a centralized analytics platform for retention and search.
- Monitor egress traffic from WebLogic hosts for unusual outbound volumes that could indicate staged data exfiltration.
- Track patch level and version banners across the WebLogic estate to identify unpatched 12.2.1.4.0, 14.1.1.0.0, and 14.1.2.0.0 instances.
How to Mitigate CVE-2025-61764
Immediate Actions Required
- Apply the fixes published in the Oracle Critical Patch Update October 2025 to all affected WebLogic Server instances.
- Inventory Oracle Fusion Middleware deployments and confirm which servers run versions 12.2.1.4.0, 14.1.1.0.0, or 14.1.2.0.0.
- Restrict network exposure of WebLogic HTTP listeners to trusted networks and administrative jump hosts only.
Patch Information
Oracle addressed CVE-2025-61764 in the October 2025 Critical Patch Update. Administrators must download and install the corresponding patch bundle for each affected WebLogic Server version from My Oracle Support. Consult the Oracle Security Alert October 2025 for patch identifiers and installation prerequisites.
Workarounds
- Place WebLogic Server behind a reverse proxy or web application firewall that enforces authentication before requests reach the application server.
- Disable or block access to unused WebLogic servlets and internal endpoints that are not required for business operations.
- Segment WebLogic hosts on dedicated network zones with strict ingress filtering until patches are deployed.
# Example: restrict inbound HTTP access to WebLogic listener using iptables
iptables -A INPUT -p tcp --dport 7001 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 7001 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
