# CVE-2026-85028: Creation of Temporary File in Directory with Insecure Permissions in AWS FPGA Development Kit

> CVE-2026-85028: Creation of Temporary File in Directory with Insecure Permissions in AWS FPGA Development Kit. CVSS 7.8 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-85028
Last updated: 2026-09-08T14:00:33Z

- Published: 2026-09-03 18:07 UTC · Updated: 2026-09-08 14:00 UTC · Assigner: AMZN
- CVSS: 7.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS: 0.17%, 7th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-379

## Description

Creation of a temporary file in a directory with insecure permissions in the FPGA management tool installation component in AWS FPGA Development Kit (aws-fpga) before 2.3.4 might allow local users to execute arbitrary code with root privileges via crafted shell content placed at a predictable path in a world-writable temporary directory, which the installation step reads after elevating its own privileges. To remediate this issue, users should upgrade to version 2.3.4.

## Affected vendors and products

- AWS: aws-fpga

## Tracked companies

- [Amazon Web Services](https://rewindex.com/company/aws.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-85028)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-85028)
- [https://aws.amazon.com/security/security-bulletins/2026-096-aws/](https://aws.amazon.com/security/security-bulletins/2026-096-aws/)
- [https://github.com/aws/aws-fpga/releases/tag/v2.3.4](https://github.com/aws/aws-fpga/releases/tag/v2.3.4)
- [https://github.com/aws/aws-fpga/security/advisories/GHSA-g4hc-wrmm-2x74](https://github.com/aws/aws-fpga/security/advisories/GHSA-g4hc-wrmm-2x74)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-85028 · Markdown: https://rewindex.com/cve/CVE-2026-85028.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-85028 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:04:50.056Z