CVE-2025-36072

8.8 HIGH

📋 TL;DR

This vulnerability in IBM webMethods Integration allows authenticated users to execute arbitrary code on affected systems through insecure deserialization of untrusted data. Attackers with valid credentials can achieve remote code execution, potentially compromising the entire system. Organizations running affected versions of IBM webMethods Integration 10.11, 10.15, or 11.1 are at risk.

💻 Affected Systems

Products:
  • IBM webMethods Integration
Versions: 10.11 through 10.11_Core_Fix22, 10.15 through 10.15_Core_Fix22, 11.1 through 11.1_Core_Fix6
Operating Systems: All supported platforms
Default Config Vulnerable: ⚠️ Yes
Notes: Requires authenticated access; all default configurations are vulnerable if running affected versions.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise with attacker gaining complete control over the server, data exfiltration, lateral movement within the network, and persistent backdoor installation.

🟠

Likely Case

Authenticated attacker executes arbitrary code to steal sensitive data, disrupt services, or pivot to other systems in the network.

🟢

If Mitigated

With proper network segmentation and least privilege access, impact limited to isolated integration environment with no critical data access.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authenticated access but leverages common deserialization patterns; likely to be weaponized given CVSS score and RCE nature.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Apply fixes beyond 10.11_Core_Fix22, 10.15_Core_Fix22, or 11.1_Core_Fix6 as specified in IBM advisory

Vendor Advisory: https://www.ibm.com/support/pages/node/7252090

Restart Required: Yes

Instructions:

1. Review IBM advisory for specific fix versions. 2. Apply appropriate fix pack or interim fix. 3. Restart webMethods Integration services. 4. Verify patch application.

🔧 Temporary Workarounds

Network Access Restriction

all

Restrict network access to webMethods Integration to only trusted IP addresses and required users

Authentication Hardening

all

Implement strong authentication controls, multi-factor authentication, and monitor for suspicious authentication attempts

🧯 If You Can't Patch

  • Isolate affected systems in dedicated network segments with strict firewall rules
  • Implement application-level monitoring for deserialization attempts and unusual process execution

🔍 How to Verify

Check if Vulnerable:

Check webMethods Integration version via administrative console or version files; compare against affected version ranges

Check Version:

Check installation directory for version files or use administrative console version display

Verify Fix Applied:

Verify installed fix version exceeds affected ranges and check for successful service restart

📡 Detection & Monitoring

Log Indicators:

  • Unusual deserialization errors
  • Unexpected process execution from webMethods services
  • Authentication from unusual sources followed by code execution patterns

Network Indicators:

  • Unusual outbound connections from webMethods servers
  • Traffic patterns indicating code execution or data exfiltration

SIEM Query:

source="webmethods" AND (event_type="deserialization" OR process_execution="unusual")

🔗 References

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