Vulnerability in Linux
CVE-2023-53340
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Collect command failures data only for known commands DEVX can issue a general command, which is not used by mlx5 driver. In case such command is failed, mlx5 is trying to collect the failure data, However, mlx5 doesn't create a storage for this command, since mlx5 doesn't use it. This lead to array-index-out-of-bounds error. Fix it by checking whether the command is known before collecting the failure data.
EPSS: 0.002 (9.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions 34f46ae0d4b38e83cfb26fb6f06b5b5efea47fdc, 5.18, 0
- Linux Linux_kernel — versions 6.4
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2023-53340?
- CVE-2023-53340 is a high-severity vulnerability in Linux, classified under Improper Validation of Array Index. CVSS score: 7.8/10. Published 2025-09-17.
- How severe is CVE-2023-53340?
- High severity. CVSS v3 base score is 7.8 out of 10.