Weblogic Server
CVE-2017-10271
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2021 - Identification and Authentication Failures
ASVS 5.0
V2 - Authentication Authentication mechanism strength, credential management
MITRE ATT&CK
1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | Critical risk (EPSS 94.4%). Mass exploitation campaigns targeted internet-facing WebLogic instances for cryptocurrency mining. The T3 protocol is often exposed on port 7001 and is easily discoverable through network scanning. |
| Exploit ScenarioDerived | Automated scanning tools identify WebLogic instances on port 7001, send a crafted T3 request with an XMLDecoder payload containing Runtime.exec() calls. The server executes the commands, downloading and installing a cryptominer that leverages the server's CPU resources for cryptocurrency mining. |
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Alert meAnalysisAIv1 – Mar 26, 2026
Oracle WebLogic Server allows unauthenticated remote code execution through the WLS Security component's T3 protocol, massively exploited for cryptocurrency mining and botnet recruitment from 2017 onward.
Earlier versions of this analysis (1)
A vulnerability in Oracle WebLogic Server's WLS Security component enables unauthenticated remote code execution via the T3 protocol. This became one of the most exploited enterprise vulnerabilities for cryptomining and botnet operations.
RemediationAI
Apply Oracle Critical Patch Update. Restrict T3 protocol access via network filtering. Deploy WebLogic's T3 connection filter to limit access to trusted hosts only. Disable XMLDecoder-based deserialization.
Affects your stack
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Technical ContextAI · show details
The CWE-306 missing authentication vulnerability in WebLogic's T3 protocol handler allows unauthenticated attackers to send crafted XML payloads containing XMLDecoder deserialization gadgets. The server processes the untrusted XML, leading to arbitrary command execution as the WebLogic service account.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
4DescriptionNVD
Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: WLS Security). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.1.0 and 12.2.1.2.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Executive ViewAI
CVE-2017-10271 presents notable security risk, a missing authentication vulnerability rated CVSS 7.5. Attackers could bypass security controls to gain unauthorized access to protected resources and sensitive data. This vulnerability is actively exploited in the wild (KEV-listed) and requires immediate remediation. A patch is available and should be applied as part of regular vulnerability management.
Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls; (2) Enable MFA where possible; (3) Monitor authentication logs for anomalous access.
Threat Intelligence Overview
NVD
CVE.org
CISA KEV
EPSS
Exploit-DB
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)NVD
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