CVE-2026-75745: Adobe AEM Forms JEE Flaw

Detection Guidance

Detection should focus on signs of unauthorized access to Forms JEE interfaces, unexpected execution from the application runtime, and post-exploitation activity. Because the vulnerable endpoint and exploit syntax are not publicly described, defenders should avoid relying on a single URL, parameter, or web application firewall signature.

Review reverse-proxy, application, operating-system, and endpoint telemetry around the disclosure date. Look for:

• Unauthenticated requests followed by server-side errors
• Unusual response sizes
• Configuration changes
• Child processes created by the Java application
• Web-shell artifacts
• Outbound connections from the Forms host
• New administrative accounts or scheduled tasks
• Unexpected modifications to application files

Correlate source IPs across multiple nodes and preserve relevant request bodies where policy and privacy controls permit.

Organizations evaluating endpoint telemetry or managed malware protection may also compare services such as Get Malwarebytes →, provided the product is validated against their environment and monitoring requirements.

Technical Notes

A generic Splunk query can identify suspicious process creation from Java-based application processes. Adapt the process names and parent-process fields to the deployment:

index=edr OR index=sysmon
(parent_process_name IN ("java","java.exe","jboss-modules.jar","start.jar")
 OR parent_process_path="*java*")
| where process_name IN ("sh","bash","cmd.exe","powershell.exe","curl","wget","nc","ncat","python","perl")
| stats count min(_time) as first_seen max(_time) as last_seen
  values(parent_process_command_line) as parent_cmd
  values(process_command_line) as child_cmd
  by host user parent_process_name process_name
| sort - count

On Linux systems, a focused audit rule can provide evidence of shell or network-tool execution by the service account. Confirm the correct service account before deployment and avoid changing audit policy without capacity testing:

sudo ausearch -m EXECVE \
  -ts 2026-09-22 00:00:00 \
  -i | grep -E '(/bin/sh|/bin/bash|curl|wget|nc|ncat|python|perl)'

A useful network detection pattern is an outbound connection from an AEM Forms host to an address or port not present in its approved dependency inventory, particularly when it occurs immediately after an unusual inbound request. This is a behavioral indicator, not a CVE-specific signature.

Remediation Steps

First, identify the exact AEM Forms JEE release and build on every node, then compare it with Adobe Security Bulletin APSB26-151.

The supplied records do not identify the vulnerable version range or fixed version number, so it would be unsafe to provide a fabricated target build. Administrators should obtain the applicable fixed release directly from Adobe and follow the bulletin’s installation procedure.

Until the fixed version is confirmed and installed:

1. Remove direct internet access where it is not required.
2. Restrict administrative and service interfaces to trusted networks.
3. Enforce authentication at approved gateways.
4. Limit access from untrusted network segments.
5. Monitor for unusual process execution and outbound connections.
6. Preserve relevant logs before making disruptive changes.

These measures are compensating controls only. They do not correct the authorization defect.

Technical Notes

A temporary Linux firewall control can restrict access to the Forms service to an approved management subnet. Replace the example interface, port, and subnet with values from the deployment. Test through an existing management path before applying the rule:

sudo nft add rule inet filter input iifname "eth0" tcp dport 8443 ip saddr != 10.20.0.0/16 drop

For a reverse proxy, restrict the affected application upstream to approved source networks. The exact Forms JEE endpoint is not identified in the public record, so apply the control at the virtual host or upstream that exposes the Forms service rather than copying an unverified endpoint path:

location / {
    allow 10.20.0.0/16;
    allow 192.0.2.10;
    deny all;
    proxy_pass http://aem_forms_jee;
}

There is no verified upgrade command or fixed version in the supplied evidence. Do not run a guessed package command or deploy a release from another Adobe product line.

After Adobe confirms the target build:

1. Download the vendor-provided update.
2. Follow Adobe’s documented installation and sequencing procedure.
3. Update every cluster member, standby system, and relevant recovery environment.
4. Verify the resulting version on each node.
5. Restart services only according to Adobe’s instructions.
6. Confirm that expected Forms functionality remains available.
7. Review logs for failed updates, unauthorized access, or unexpected changes.

After remediation, review process, access, configuration, and outbound network logs for the period before patching. Rotate credentials or tokens if unauthorized access is suspected. Isolate affected hosts when evidence of code execution exists, and investigate persistence, modified application files, new scheduled tasks, and unexpected administrative accounts.