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CVE-2026-9158 Eclipse Foundation CVE debrief

CVE-2026-9158 is a medium-severity vulnerability 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, allowing subsequent commands to access freed memory (use-after-free). This issue was published on June 18, 2026, and has a CVSS score of 5.2. Users of affected versions should take immediate action to mitigate potential risks. The vulnerability is tracked under CWE-416. Eclipse is the likely vendor, but confirmation is pending. Organizations should review their systems for exposure and apply patches or mitigations as available.

Vendor
Eclipse Foundation
Product
Eclipse 4diac
CVSS
MEDIUM 5.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-18
Original CVE updated
2026-07-02
Advisory published
2026-06-18
Advisory updated
2026-07-02

Who should care

Users of Eclipse 4diac FORTE versions 3.0.0 to 3.1.0 should be aware of this vulnerability and take steps to mitigate potential risks. This includes reviewing system configurations, applying patches or updates when available, and monitoring for suspicious activity.

Technical summary

CVE-2026-9158 is a use-after-free vulnerability in Eclipse 4diac FORTE versions 3.0.0 to 3.1.0. The issue arises from a specially crafted DELETE connection command to the management interface, resulting in a dangling pointer. This allows attackers to access freed memory, potentially leading to system crashes or code execution. The vulnerability has a CVSS score of 5.2 and is classified under CWE-416.

Defensive priority

Medium

Recommended defensive actions

  • Update to a patched version of Eclipse 4diac FORTE when available
  • Restrict access to the management interface
  • Monitor system logs for suspicious activity
  • Implement additional security measures such as input validation and error handling
  • Review system configurations for exposure
  • Apply network segmentation and isolation as needed

Evidence notes

The CVE record was published on June 18, 2026, and has a CVSS score of 5.2. The vulnerability is tracked under CWE-416. The Eclipse project is the likely vendor, based on the information provided in the source reference (https://gitlab.eclipse.org/security/cve-assignment/-/work_items/109).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-9158 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-9158

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-9158 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-9158

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.