CVE-2026-119116
Use-after-free in the SetClient command handler of kmstool-enclave in AWS aws-nitro-enclaves-sdk-c
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
A use-after-free and double-free issue in the SetClient command handler of the kmstool-enclave sample application of AWS aws-nitro-enclaves-sdk-c before 0.4.6 may allow an application that runs on the parent EC2 instance to corrupt heap memory inside a Nitro Enclave which may lead to arbitrary code execution within the enclave. To remediate this issue, users should rebuild any enclave image that includes kmstool-enclave, or code derived from it, against aws-nitro-enclaves-sdk-c 0.4.6.
| CWE | CWE-416 CWE-415 |
| Vendor | aws |
| Product | kmstool-enclave |
| Published | Oct 30, 2026 |
| Last Updated | Oct 30, 2026 |
Stay Ahead of the Next One
Get instant alerts for aws kmstool-enclave
Be the first to know when new high vulnerabilities affecting aws kmstool-enclave are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
AWS / kmstool-enclave
0 < 0.4.6