CVE-2025-22076
Description
A flaw was found in the Linux kernel's exFAT file system driver. The driver fails to verify whether a storage volume has been shut down before executing standard file input/output operations. A local user could exploit this flaw by interacting with an exFAT device during a forced shutdown, resulting in improper driver state and a potential Denial of Service (DoS).
Statement
This vulnerability is rated Moderate in impact because exploitation requires local access and interaction with an active exFAT filesystem on a device undergoing forced shutdown, restricting the scope of impact to local denial of service. Due to missing validation of shutdown state across file I/O operations, accessing a terminated exFAT volume leads to inconsistent driver behavior rather than returning appropriate I/O errors. Earlier enterprise releases, including Red Hat Enterprise Linux 8 and 9, lack the vulnerable code paths and are not affected.
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 | 5.5 | N/A |
| Attack Vector | Local | Local | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | Low | Low | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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