High severity · published Sep 3, 2026
CVE-2026-85028
Creation of Temporary File in Directory with Insecure Permissions in AWS FPGA Development Kit
7.8
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AW
aws-fpga · AWS
before 2.3.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85028
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85028
aws.amazon.com
https://aws.amazon.com/security/security-bulletins/2026-096-aws/
github.com
https://github.com/aws/aws-fpga/releases/tag/v2.3.4
github.com
https://github.com/aws/aws-fpga/security/advisories/GHSA-g4hc-wrmm-2x74
