What is CVE-2023-32255?

CVE-2023-32255 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 5.3/10. Published 2025-08-02.

How severe is CVE-2023-32255?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Red Hat Enterprise Linux 10

CVE-2023-32255

A flaw was found in the Linux kernel's ksmbd component. A memory leak can occur if a client sends a session setup request with an unknown NTLMSSP message type, potentially leading to resource exhaustion.

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

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.005 (38.9th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-772 — Missing Release of Resource after Effective Lifetime

References

Frequently asked questions

What is CVE-2023-32255?: CVE-2023-32255 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 5.3/10. Published 2025-08-02.
How severe is CVE-2023-32255?: Medium severity. CVSS v3 base score is 5.3 out of 10.