# CVE-2026-78299

## Summary

- **CVE ID:** CVE-2026-78299
- **Severity:** CRITICAL
- **CVSS Score:** 9.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
- **CWE:** CWE-22
- **Published:** Sep 14, 2026
- **Last Modified:** Sep 14, 2026

## Description

In Eclipse Embedded CDT versions 6.0 to 6.7 if the CMSIS-Pack archive extracts a compromised CMSIS pack the archive extraction can extract files to locations outside of the pack, allowing writing of arbitrary files to other locations on disk.

## Affected Products

- Eclipse Foundation — Eclipse Embedded CDT (C/C++ Development Tools) (0)
- Eclipse Foundation — Eclipse Embedded CDT (C/C++ Development Tools) (6.0.0)

## References

- [CNA](https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/747)
- [CNA](https://github.com/eclipse-embed-cdt/eclipse-plugins/security/advisories/GHSA-qch4-8rmp-mjx3)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.35%
- **EPSS Percentile:** 28.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._