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4diac ForteApplication · Eclipse

CVE-2026-9158

CRITICAL · 9.8 CVSS v3.1 Published 2026-06-18
Fix available
A fix is available. Upgrade to after 3.1.0 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In Eclipse 4diac FORTE versions 3.0.0 to 3.1.0, a specially crafted DELETE connection command to the management interface can lead to a dangling pointer. This allows subsequent commands to access freed memory (use-after-free).

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Use-after-free vulnerability in Eclipse 4diac FORTE versions 3.0.0-3.1.0 management interface. A specially crafted DELETE connection command creates a dangling pointer by freeing memory without proper pointer nullification, allowing subsequent commands to access already-freed memory.

MitigationUpgrade to version beyond 3.1.0 when available. If no patch exists, restrict network access to the management interface and monitor for exploitation attempts.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
4diac ForteApplication
Affected:>= 3.0.0, <= 3.1.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed FORTE version
    Run 'forte --version' or check the application binary/version information. On Linux, you may also check the package manager or the binary file properties.
    Affected if The version is 3.0.0, 3.1.0, or any version in between (e.g., 3.0.1, 3.0.2). Compare your installed version against the affected range of >=3.0.0 and <=3.1.0.
  2. Locate FORTE configuration file
    Find the forte.ini or forte.cfg configuration file used by your deployment. This is typically in the installation directory or in a config folder specified at startup.
    Affected if The configuration file exists and is readable, allowing inspection of enabled modules.
  3. Check if management interface is enabled
    Inspect the configuration file for management interface settings. Look for modules related to HTTP, web server, or management API. In FORTE, this is often configured via the forte.ini file under the [MODULES] section or similar.
    Affected if The management interface module (HTTP server, web interface, or management API) is explicitly enabled in the configuration.
  4. Verify management interface is exposed to network
    Review network configuration or firewall rules to determine if the management interface port is accessible. Default FORTE management ports should be checked against your network exposure.
    Affected if The management interface port is bound to a reachable network address (not localhost only) or is accessible from external systems.
  5. Check for signs of exploitation attempts
    Review application logs for abnormal behavior around connection management, particularly failed or unusual DELETE commands. Monitor for crashes or unexpected process termination.
    Affected if Logs show evidence of connection-related crashes, memory errors, or anomalous DELETE command patterns.

You are affected if your Eclipse 4diac FORTE version is between 3.0.0 and 3.1.0 inclusive AND the management interface is enabled and accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 3.1.0
Interim mitigation

Upgrade to version beyond 3.1.0 when available. If no patch exists, restrict network access to the management interface and monitor for exploitation attempts.

Recommended fix Moderate confidence

Eclipse 4diac FORTE 3.1.1 or later (next stable release after 3.1.0)

  1. 1. Identify all deployments running Eclipse 4diac FORTE versions 3.0.0 through 3.1.0
  2. 2. Stop any running FORTE instances that use the management interface
  3. 3. Obtain the fixed version of Eclipse 4diac FORTE (version 3.1.1 or later) from the official Eclipse 4diac distribution at eclipse.org/4diac
  4. 4. Back up existing configuration files and any custom FORTE setups
  5. 5. Install the upgraded FORTE version following standard installation procedures
  6. 6. Restore configuration from the backup
  7. 7. Restart the FORTE service
  8. 8. Verify the management interface is operational and test that DELETE connection commands no longer cause dangling pointers
Caveat Review release notes for any API or configuration changes between 3.0.0/3.1.0 and the target upgrade version before deploying in production

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in 4diac Forte Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA3.0 h
19.0 hours of engineering $3,380
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-9158 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data