HighCISA KEVExploited in the wildPublic exploit

Oracle WebLogic Server Web Services XMLDecoder Deserialization RCE

IdentifiersCVE-2017-3506CWE-502

CVE-2017-3506 affects the Web Services component of Oracle WebLogic Server in supported versions 10.3.6.0, 12.1.3.0, 12.2.1.0, 12.2.1.1, and 12.2.1.2. The provided content indicates that the flaw is exploitable by sending a specifically crafted XML document in an HTTP request to the WebLogic Web Services interface, and multiple sources in the content characterize it as a deserialization issue enabling arbitrary command execution. Based on the available information, the vulnerability is consistent with unsafe deserialization/XMLDecoder handling in the Web Services stack, allowing an unauthenticated remote attacker with network access over HTTP to cause the server to process attacker-controlled serialized data and execute attacker-supplied commands.

For your environment

Are you exposed to this one?

Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.

Start free trial

ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows compromise of Oracle WebLogic Server by an unauthenticated network attacker. The Oracle description in the content states impacts are high for confidentiality and integrity: unauthorized creation, deletion, or modification of critical data, as well as unauthorized access to critical data or complete access to all Oracle WebLogic Server-accessible data. The supporting context also states attackers have used the flaw for arbitrary command execution and malware deployment, including cryptomining payloads, indicating practical remote code execution on vulnerable servers.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure of WebLogic HTTP/Web Services endpoints to untrusted networks, restrict access with network ACLs or reverse proxies, and disable or limit unnecessary Web Services functionality where operationally feasible. Deploy WAF protections or request filtering capable of detecting/blocking malicious crafted XML payloads targeting WebLogic Web Services, and monitor for suspicious HTTP requests and post-exploitation activity such as command execution, PowerShell usage, scheduled task creation, or miner deployment. These are temporary measures and do not replace vendor patching.

Remediation

Patch, then assume compromise.

Apply Oracle's security updates for CVE-2017-3506 and upgrade affected Oracle WebLogic Server installations to a patched release. The vulnerable versions listed in the content are 10.3.6.0, 12.1.3.0, 12.2.1.0, 12.2.1.1, and 12.2.1.2; remediation is to move to Oracle-fixed versions and ensure the Web Services component is updated. Because the flaw is remotely exploitable without authentication, patching internet-exposed systems should be prioritized.

PUBLIC EXPLOITS

Exploits

No valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.

VALID 0 / 2 TOTALView more in app

All candidate exploits were filtered out by Mallory's validation.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

OracleWeblogic Serverapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

4 SOURCESView more in app

osint team blogNews

May 7, 2026

I Deployed T-Pot Honeypots Twice and Here‘s What Attackers Did Next | by Abhang Mandwale | May, 2026 | OSINT Team

A deserialization-based remote code execution vulnerability observed being targeted against the Stockholm honeypot.

trend micro researchNews

Jun 28, 2024

Examining Water Sigbin's Infection Routine Leading to an XMRig Cryptominer

A remote code execution vulnerability in Oracle WebLogic Server's WLS Security Component that allows attackers to execute arbitrary code on the server, often used for initial access by threat actors.

imperva blogNews

Dec 14, 2023

Imperva Detects Undocumented 8220 Gang Activities

A remote code execution vulnerability in Oracle WebLogic Server that allows attackers to execute arbitrary code on the server.

picus security blogNews

Jun 14, 2023

Picus Cyber Threat Intelligence Report May 2023: Top 10 MITRE ATT&CK Techniques

A remote code execution vulnerability in Oracle WebLogic that can allow arbitrary command execution via a crafted XML payload delivered over HTTP, enabling unauthorized access and full system compromise.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

Start free trial

Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence1

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures1

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES

MITRE CVE

cve.org · CVE-2017-3506

NVD

nvd.nist.gov/vuln/detail/CVE-2017-3506

MITRE CWE · CWE-502

cwe.mitre.org

Patch

oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html

US Government Resource

cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-3506