What is CVE-2023-53399?

CVE-2023-53399 is a high-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2025-09-18.

How severe is CVE-2023-53399?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Linux

CVE-2023-53399

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix NULL pointer dereference in smb2_get_info_filesystem() If share is , share->path is NULL and it cause NULL pointer dereference issue.

EPSS: 0.001 (3.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 0626e6641f6b467447c81dd7678a69c66f7746cf, 5.15, 0
Linux Linux_kernel

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2023-53399?: CVE-2023-53399 is a high-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2025-09-18.
How severe is CVE-2023-53399?: High severity. CVSS v3 base score is 7.5 out of 10.