CVE-2026-68358
Description
A flaw was found in the Linux kernel's hwmon (nzxt-kraken3) component. A race condition exists where the hid_hw_stop() function does not stop device input/output (IO). This can lead to a use-after-free (UAF) vulnerability if a device probe operation fails after IO has been initiated. This vulnerability could allow a local attacker to potentially cause a denial of service or escalate privileges.
Statement
This issue affects NZXT Kraken3 AIO coolers (nzxt-kraken3 hwmon). HID I/O not stopped before hid_hw_stop on probe failure can UAF. Systems without this hardware are not affected.
Mitigation
To mitigate this issue, prevent the nzxt_kraken3 module from loading. See https://access.redhat.com/solutions/41278 for instructions.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.5 | N/A | N/A |
| Attack Vector | Local | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | Low | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | None | N/A | N/A |
| Integrity Impact | None | N/A | N/A |
| Availability Impact | High | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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