What is CVE-2023-54280?

CVE-2023-54280 is a critical-severity vulnerability in Linux. CVSS score: 9.8/10. Published 2025-12-30.

How severe is CVE-2023-54280?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Linux

CVE-2023-54280

In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential race when tree connecting ipc Protect access of TCP_Server_Info::hostname when building the ipc tree name as it might get freed in cifsd thread and thus causing an use-after-free bug in __tree_connect_dfs_target(). Also, while at it, update status of IPC tcon on success and then avoid any extra tree connects.

EPSS: 0.002 (6.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e, 6.3.2, 6.4

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67

Frequently asked questions

What is CVE-2023-54280?: CVE-2023-54280 is a critical-severity vulnerability in Linux. CVSS score: 9.8/10. Published 2025-12-30.
How severe is CVE-2023-54280?: Critical severity. CVSS v3 base score is 9.8 out of 10.