CVE-2026-3012

8.0 HIGH
Published: May 27, 2026 Modified: June 15, 2026
View on NVD

Description

A flaw was found in Samba’s certificate auto-enrollment Group Policy handling. When certificate auto-enrollment is enabled, Samba may retrieve a CA certificate over an unencrypted HTTP connection and install it into the local trust store without proper verification. An attacker with the ability to intercept or redirect network traffic could exploit this behavior to supply a malicious certificate authority certificate, potentially allowing interception or spoofing of trusted communications.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:22644
Source: secalert@redhat.com
Issue Tracking
https://access.redhat.com/errata/RHSA-2026:22963
Source: secalert@redhat.com
Issue Tracking
https://access.redhat.com/security/cve/CVE-2026-3012
Source: secalert@redhat.com
Mitigation Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2447319
Source: secalert@redhat.com
Issue Tracking Third Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=16003
Source: secalert@redhat.com
Issue Tracking Mitigation Vendor Advisory

7 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.0 / 10.0
EPSS (Exploit Probability)
0.2%
9th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

samba redhat