What is CVE-2023-32253?

CVE-2023-32253 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under CWE-413. CVSS score: 5.9/10. Published 2025-08-02.

How severe is CVE-2023-32253?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Red Hat Enterprise Linux 10

CVE-2023-32253

A flaw was found in the Linux kernel's ksmbd component. A deadlock is triggered by sending multiple concurrent session setup requests, possibly leading to a denial of service.

Published 2025-08-02 · last modified 2026-06-30.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (21.3th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-413

References

access.redhat.com/security/cve/CVE-2023-32253 (vdb-entry)
bugzilla.redhat.com/show_bug.cgi (issue-tracking)

Frequently asked questions

What is CVE-2023-32253?: CVE-2023-32253 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under CWE-413. CVSS score: 5.9/10. Published 2025-08-02.
How severe is CVE-2023-32253?: Medium severity. CVSS v3 base score is 5.9 out of 10.