What is CVE-2022-32746?

CVE-2022-32746 is a medium-severity vulnerability in Samba, classified under Use After Free. CVSS score: 5.4/10. Published 2022-08-25.

How severe is CVE-2022-32746?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Use After Free in Samba

CVE-2022-32746

A flaw was found in the Samba AD LDAP server. The AD DC database audit logging module can access LDAP message values freed by a preceding database module, resulting in a use-after-free issue. This issue is only possible when modifying certain privileged attributes, such as userAccountControl.

Vulnerability class: Use-After-Free

Published 2022-08-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.

EPSS exploit prediction

EPSS: 0.012 (67.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: +0.000

Affected products

Samba
Samba — versions Versions prior to samba 4.16.4, samba 4.15.9, samba 4.14.14

Weakness classification (CWE)

CWE-416 — Use After Free

References

www.samba.org/samba/security/CVE-2022-32746.html (Patch, Vendor Advisory)
security.gentoo.org/glsa/202309-06 (vendor-advisory)

Frequently asked questions

What is CVE-2022-32746?: CVE-2022-32746 is a medium-severity vulnerability in Samba, classified under Use After Free. CVSS score: 5.4/10. Published 2022-08-25.
How severe is CVE-2022-32746?: Medium severity. CVSS v3 base score is 5.4 out of 10.