What is CVE-2026-53010?

CVE-2026-53010 is a critical-severity vulnerability in Linux, classified under Use After Free. CVSS score: 9.8/10. Published 2026-06-24.

How severe is CVE-2026-53010?

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

Use After Free in Linux

CVE-2026-53010

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb2_open during durable reconnect In smb2_open, the call to ksmbd_put_durable_fd(fp) drops the reference to the durable file descriptor ear…

Vulnerability class: Use-After-Free

EPSS: 0.004 (35.2th 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 c8efcc786146a951091588e5fa7e3c754850cb3c, 8df4bcdb0a4232192b2445256c39b787d58ef14d, 6.6.32
Linux Linux_kernel

Weakness classification (CWE)

CWE-416 — Use After Free

References

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

Frequently asked questions

What is CVE-2026-53010?: CVE-2026-53010 is a critical-severity vulnerability in Linux, classified under Use After Free. CVSS score: 9.8/10. Published 2026-06-24.
How severe is CVE-2026-53010?: Critical severity. CVSS v3 base score is 9.8 out of 10.