CVE-2026-60312 in WebLogic Server
Summary
by MITRE • 07/22/2026
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 07/22/2026
The vulnerability under discussion represents a critical security flaw in Oracle WebLogic Server within the Fusion Middleware suite, specifically affecting the Core component. This weakness manifests as a remote code execution vulnerability that can be exploited by unauthenticated attackers without requiring any prior authentication credentials or user interaction. The affected versions span across multiple release lines including 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0, indicating a widespread impact across the product lifecycle. The vulnerability's classification as difficult to exploit suggests that while sophisticated attack techniques are required, the potential for successful compromise remains significant given the right conditions.
The technical exploitation mechanism leverages network protocols including T3 and IIOP which are commonly used for communication between Java-based applications and WebLogic Server components. These protocols facilitate remote procedure calls and object serialization processes that have historically been targets for attack vectors in enterprise Java applications. The vulnerability enables attackers to gain complete control over the affected WebLogic Server instances, representing a severe compromise of system integrity and availability. The CVSS 3.1 score of 8.1 indicates high severity with impacts spanning confidentiality, integrity, and availability aspects, making this vulnerability particularly dangerous for enterprise environments where WebLogic servers typically serve as critical infrastructure components.
From an operational standpoint, successful exploitation of this vulnerability can lead to complete system compromise including unauthorized access to sensitive data, modification of application behavior, and potential disruption of business services. The impact extends beyond simple data theft to include full administrative control over the affected server instances, potentially enabling attackers to deploy additional malware, establish persistence mechanisms, or use the compromised servers as launch points for further attacks within the network infrastructure. Organizations running these vulnerable versions face substantial risk given that the attack requires only network connectivity without authentication requirements, making it particularly dangerous in environments where such services might be exposed to untrusted networks.
Mitigation strategies should prioritize immediate patching of affected systems with Oracle's security updates, which typically address the underlying protocol handling vulnerabilities in the T3 and IIOP implementations. Network segmentation and firewall rules should restrict access to WebLogic Server ports from untrusted networks while implementing strict access controls for legitimate administrative connections. Monitoring network traffic for unusual T3 and IIOP protocol usage patterns can help detect potential exploitation attempts, though this requires careful configuration to avoid false positives. The vulnerability aligns with CWE-125 and CWE-798 categories related to improper input validation and exposure of sensitive information, while also mapping to ATT&CK techniques involving remote code execution and privilege escalation through network service exploitation. Organizations should implement comprehensive security monitoring solutions that can detect anomalous behavior patterns consistent with this type of vulnerability exploitation, particularly focusing on the specific protocol vectors mentioned in the vulnerability description.