# CVE-2026-89439

## Summary

- **CVE ID:** CVE-2026-89439
- **Severity:** UNKNOWN
- **CVSS Score:** 1.51
- **CWE:** N/A
- **Published:** Sep 11, 2026
- **Last Modified:** Sep 16, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:

platform/x86: ISST: Add a NULL check for sst_inst[]

To be consistent with other places, add a NULL check for failed socket
loading by checking isst_common.sst_inst[].

## Affected Products

- Linux — Linux (d805456c712f93ba8a012430f2a93bec133b6ff4)
- Linux — Linux (6.4)
- Linux — Linux (0)
- Linux — Linux (6.12.109)
- Linux — Linux (6.18.50)
- Linux — Linux (7.2.4)
- Linux — Linux (7.3-rc1)

## References

- [CNA](https://git.kernel.org/stable/c/49a95fe1f64f41c2e8959e525aefdb10f23b293e)
- [CNA](https://git.kernel.org/stable/c/c280fcd53b938b70c7dee9ce1a66b32bd6e5ebaa)
- [CNA](https://git.kernel.org/stable/c/ef7975af15126dd70ace519da7bb33f2848b9064)
- [CNA](https://git.kernel.org/stable/c/3de2776e9d7073765c10c2326c2bda5926811ea6)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.20%
- **EPSS Percentile:** 10.1

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